Provided by: msmtp_1.6.7-1_amd64 bug

NAME

       msmtp - An SMTP client

SYNOPSIS

       Sendmail mode (default):
              msmtp [option...] [--] recipient...
              msmtp [option...] -t [--] [recipient...]

       Server information mode:
              msmtp [option...] --serverinfo

       Remote Message Queue Starting mode:
              msmtp [option...] --rmqs=host|@domain|#queue

DESCRIPTION

       In  the  default  sendmail mode, msmtp reads a mail from standard input and sends it to an
       SMTP server for delivery.
       In server information mode, msmtp prints information about an SMTP server.
       In Remote Message Queue Starting mode, msmtp sends a Remote Message Queue Starting request
       for a host, domain, or queue to an SMTP server.

EXIT STATUS

       The standard sendmail exit status codes are used, as defined in sysexits.h.

OPTIONS

       Options override configuration file settings.
       They are compatible with sendmail where appropriate.

       General options

              --version
                     Print version information, including information about the libraries used.

              --help Print help.

              -P, --pretend
                     Print the configuration settings that would be used, but do not take further
                     action.  An asterisk (`*') will be printed instead of your password.

              -v, -d, --debug
                     Print lots of debugging information, including the whole  conversation  with
                     the  SMTP  server.  Be careful with this option: the (potentially dangerous)
                     output will not be sanitized, and your password may get printed in an easily
                     decodable format!

       Changing the mode of operation

              -S, --serverinfo
                     Print  information about the SMTP server and exit. This includes information
                     about supported features (mail size limit, authentication,  TLS,  DSN,  ...)
                     and about the TLS certificate (if TLS is active).

              --rmqs=(host|@domain|#queue)
                     Send  a Remote Message Queue Starting request for the given host, domain, or
                     queue to the SMTP server and exit.

       Configuration options

              -C, --file=filename
                     Use the given file instead of ~/.msmtprc or $XDG_CONFIG_HOME/msmtp/config as
                     the user configuration file.

              -a, --account=account_name
                     Use  the  given account instead of the account named "default". The settings
                     of this account may be changed with command line options. This option cannot
                     be used together with the --host option.

              --host=hostname
                     Use  this  SMTP  server  with settings from the command line; do not use any
                     configuration file data. This  option  cannot  be  used  together  with  the
                     --account option.

              --port=number
                     Set the port number to connect to. See the port command.

              --timeout=(off|seconds)
                     Set or unset a network timeout, in seconds. See the timeout command.

              --proxy-host=[IP|hostname]
                     Set or unset a SOCKS proxy to use. See the proxy_host command.

              --proxy-port=[number]
                     Set or unset a port number for the proxy host. See the proxy_port command.

              --protocol=(smtp|lmtp)
                     Set the protocol. See the protocol command.

              --domain=[string]
                     Set  the  argument  of  the SMTP EHLO (or LMTP LHLO) command. See the domain
                     command.

              --auth[=(on|off|method)]
                     Enable or disable authentication and optionally choose the method.  See  the
                     auth command.

              --user=[username]
                     Set or unset the user name for authentication. See the user command.

              --passwordeval=[eval]
                     Evaluate password for authentication. See the passwordeval command.

              --tls[=(on|off)]
                     Enable or disable TLS/SSL. See the tls command.

              --tls-starttls[=(on|off)]
                     Enable or disable STARTTLS for TLS. See the tls_starttls command.

              --tls-trust-file=[file]
                     Set or unset a trust file for TLS. See the tls_trust_file command.

              --tls-crl-file=[file]
                     Set  or  unset  a  certificate  revocation  list (CRL) file for TLS. See the
                     tls_crl_file command.

              --tls-fingerprint=[fingerprint]
                     Set or  unset  the  fingerprint  of  a  trusted  TLS  certificate.  See  the
                     tls_fingerprint command.

              --tls-key-file=[file]
                     Set or unset a key file for TLS. See the tls_key_file command.

              --tls-cert-file=[file]
                     Set or unset a cert file for TLS. See the tls_cert_file command.

              --tls-certcheck[=(on|off)]
                     Enable  or  disable server certificate checks for TLS. See the tls_certcheck
                     command.

              --tls-min-dh-prime-bits=[bits]
                     Set or unset minimum bit size of the  Diffie-Hellman  (DH)  prime.  See  the
                     tls_min_dh_prime_bits command.

              --tls-priorities=[priorities]
                     Set or unset TLS priorities. See the tls_priorities command.

       Options specific to sendmail mode

              -f, --from=address
                     Set the envelope-from address. It is only used when auto_from is off.
                     If  no  account  was chosen yet (with --account or --host), this option will
                     choose the first account that has the given envelope-from address (set  with
                     the from command). If no such account is found, "default" is used.

              --auto-from[=(on|off)]
                     Enable  or  disable  automatic  envelope-from addresses. The default is off.
                     See the auto_from command.

              --maildomain=[domain]
                     Set the domain part for the --auto-from address. See the maildomain command.

              -N, --dsn-notify=(off|cond)
                     Set or unset DSN notification conditions. See the dsn_notify command.

              -R, --dsn-return=(off|ret)
                     Set or unset the DSN notification amount. See the dsn_return command.   Note
                     that  hdrs  is  accepted  as  an  alias  for  headers  to be compatible with
                     sendmail.

              --add-missing-from-header[=(on|off)]
                     Enable  or  disable  the  addition  of  a  missing  From  header.  See   the
                     add_missing_from_header command.

              --add-missing-date-header[=(on|off)]
                     Enable   or  disable  the  addition  of  a  missing  Date  header.  See  the
                     add_missing_date_header command.

              --remove-bcc-headers[=(on|off)]
                     Enable or disable the removal of Bcc  headers.  See  the  remove_bcc_headers
                     command.

              -X, --logfile=[file]
                     Set or unset the log file. See the logfile command.

              --syslog[=(on|off|facility)]
                     Enable or disable syslog logging. See the syslog command.

              -t, --read-recipients
                     Read  recipient  addresses  from  the To, Cc, and Bcc headers of the mail in
                     addition to the recipients given  on  the  command  line.   If  any  Resent-
                     headers  are  present, then the addresses from any Resent-To, Resent-Cc, and
                     Resent-Bcc headers in the first block of Resent- headers are used instead.

              --read-envelope-from
                     Read the envelope from address from the From header of the mail.   Currently
                     this header must be on a single line for this option to work correctly.

              --aliases=[file]
                     Set or unset an aliases file. See the aliases command.

              -Fname Msmtp  adds  a  From  header  to mails that lack it, using the envelope from
                     address. This option allows one to set a  full  name  to  be  used  in  that
                     header.

              --     This  marks  the  end of options. All following arguments will be treated as
                     recipient addresses, even if they start with a `-'.

       The following options are accepted but ignored for sendmail compatibility:
       -Btype, -bm, -G, -hN, -i, -L tag, -m, -n, -O option=value, -ox value

USAGE

       Normally, a system wide configuration  file  and/or  a  user  configuration  file  contain
       information about which SMTP server to use and how to use it, but all settings can also be
       configured on the command line.
       The information about SMTP servers is organized in accounts. Each  account  describes  one
       SMTP   server:  host  name,  authentication  settings,  TLS  settings,  and  so  on.  Each
       configuration file can define multiple accounts.

       The user can choose which account to use in one of three ways:

       --account=id
              Use the given account. Command line settings override configuration file settings.

       --host=hostname
              Use only the settings from the command line; do  not  use  any  configuration  file
              data.

       --from=address or --read-envelope-from
              Choose  the  first  account  from  the system or user configuration file that has a
              matching envelope-from address as specified by a from command. This works only when
              neither --account nor --host is used.

       If  none of the above options is used (or if no account has a matching from command), then
       the account "default" is used.

       Msmtp transmits mails unaltered to the SMTP server, with the following exceptions:
       -  The  Bcc  header(s)  will  be  removed.  This  behavior  can  be   changed   with   the
       remove_bcc_headers command and --remove-bcc-headers option.
       -  A From header will be added if the mail does not have one. This can be changed with the
       add_missing_from_header command and --add-missing-from-header option.  The header will use
       the envelope from address and optionally a full name set with the -F option.
       -  A Date header will be added if the mail does not have one. This can be changed with the
       add_missing_date_header command and --add-missing-date-header option.

       Skip to the EXAMPLES section for a quick start.

CONFIGURATION FILES

       If it exists and is readable, a system wide configuration file SYSCONFDIR/msmtprc will  be
       loaded,  where  SYSCONFDIR  depends  on  your  platform.   Use --version to find out which
       directory is used.
       If it exists and is readable, a user configuration file will be loaded (~/.msmtprc will be
       tried  first  followed  by  $XDG_CONFIG_HOME/msmtp/config  by default, but see --version).
       Accounts defined in  the  user  configuration  file  override  accounts  from  the  system
       configuration file.
       Configuration data from either file can be changed by command line options.

       A  configuration  file  is a simple text file.  Empty lines and comment lines (whose first
       non-blank character is `#') are ignored.
       Every other line must contain a command and may contain an argument to that command.
       The argument may be enclosed in double quotes ("),  for  example  if  its  first  or  last
       character is a blank.
       If  a  file  name  starts  with the tilde (~), this tilde will be replaced by $HOME.  If a
       command accepts the argument on, it also accepts an empty argument and treats that  as  if
       it was on.
       Commands  are  organized  in  accounts.  Each  account starts with the account command and
       defines the settings for one SMTP account.

       Skip to the EXAMPLES section for a quick start.

       Commands are as follows:

       defaults
              Set defaults. The following configuration commands will set default values for  all
              following account definitions in the current configuration file.

       account name [:account[,...]]
              Start  a new account definition with the given name. The current default values are
              filled in.
              If a colon and a list of previously defined accounts is  given  after  the  account
              name, the new account, with the filled in default values, will inherit all settings
              from the accounts in the list.

       host hostname
              The SMTP server to send the mail to.  The argument may be a host name or a  network
              address.  Every account definition must contain this command.

       port number
              The  port  that the SMTP server listens on.  The default is 25 ("smtp"), unless TLS
              without STARTTLS is used, in which case it is 465 ("smtps").

       timeout (off|seconds)
              Set or unset a network timeout, in seconds. The argument off means that no  timeout
              will be set, which means that the operating system default will be used.

       proxy_host [IP|hostname]
              Use  a  SOCKS proxy. All network traffic will go through this proxy host, including
              DNS queries, except for a DNS query that might be necessary to  resolve  the  proxy
              host  name  itself (this can be avoided by using an IP address as proxy host name).
              An empty hostname argument disables proxy  usage.   The  supported  SOCKS  protocol
              version  is  5.  If  you want to use this with Tor, see also "Using msmtp with Tor"
              below.

       proxy_port [number]
              Set the port number for the proxy host. An empty number argument resets this to the
              default port.

       protocol (smtp|lmtp)
              Set  the  protocol  to use. Currently only SMTP and LMTP are supported. SMTP is the
              default. See the port command above for default ports.

       domain argument
              Use this command to set the argument of the SMTP EHLO (or LMTP LHLO) command.   The
              default  is localhost, which is stupid but usually works. Try to change the default
              if mails get rejected due to anti-SPAM measures. Possible choices  are  the  domain
              part  of your mail address (provider.example for joe@provider.example) or the fully
              qualified domain name of your host (if available).

       auth [(on|off|method)]
              Enable or disable authentication  and  optionally  choose  a  method  to  use.  The
              argument on chooses a method automatically.
              Usually  a  user  name and a password are used for authentication. The user name is
              specified in the configuration file with the user command. There are five different
              methods to specify the password:
              1.  Add the password to the system key ring.  Currently supported key rings are the
              Gnome key ring and the Mac OS X Keychain.  For the Gnome key ring, use the  command
              secret-tool  (part  of  Gnome's  libsecret)  to  store passwords: secret-tool store
              --label=msmtp host mail.freemail.example service smtp user joe.smith.  On Mac OS X,
              use  the  Keychain  Access  GUI  application.  The account name is same as the user
              name. The keychain item name is smtp://<hostname> where <hostname> matches the host
              argument.
              2.  Store  the  password  in  an encrypted files, and use passwordeval to specify a
              command to decrypt that file, e.g. using GnuPG. See EXAMPLES.
              3. Store the password  in  the  configuration  file  using  the  password  command.
              (Usually  it  is not considered a good idea to store passwords in plain text files.
              If you do it anyway, you must  make  sure  that  the  file  can  only  be  read  by
              yourself.)
              4. Store the password in ~/.netrc. This method is probably obsolete.
              5. Type the password into the terminal when it is required.
              It is recommended to use method 1 or 2.
              Multiple  authentication  methods  exist.  Most  servers support only some of them.
              Historically, sophisticated methods were developed to protect passwords from  being
              sent  unencrypted  to  the  server, but nowadays everybody needs TLS anyway, so the
              simple  methods  suffice  since  the  whole  session  is  protected.   A   suitable
              authentication  method  is  chosen automatically, and when TLS is disabled for some
              reason, only methods that avoid sending clear text passwords are considered.
              The following user / password methods are supported: plain  (a  simple  plain  text
              method,  with  base64  encoding,  supported  by almost all servers), scram-sha-1 (a
              method that avoids clear-text passwords), cram-md5 (an obsolete method that  avoids
              clear-text  passwords),  digest-md5 (an overcomplicated obsolete method that avoids
              clear-text passwords, but is not considered secure anymore), login (a  non-standard
              clear-text  method  similar  to  but worse than the plain method), ntlm (an obscure
              non-standard method that is now considered broken; it sometimes requires a  special
              domain parameter passed via ntlmdomain).
              There  are  currently  two  authentication  methods  that  are  not based on user /
              password information and have to be chosen manually: external  (the  authentication
              happens outside of the protocol, typically by sending a TLS client certificate, and
              the method merely confirms that this authentication  succeeded),  and  gssapi  (the
              Kerberos  framework  takes  care  of  secure  authentication,  only  a user name is
              required).
              It depends on the underlying authentication  library  and  its  version  whether  a
              particular  method is supported or not. Use --version to find out which methods are
              supported.

       user login
              Set the user name for authentication. An empty argument unsets the user name.

       password secret
              Set the password  for  authentication.  An  empty  argument  unsets  the  password.
              Consider  using  the passwordeval command or a key ring instead of this command, to
              avoid storing plain text passwords in the configuration file.

       passwordeval [eval]
              Set the password for authentication to the output (stdout)  of  the  command  eval.
              This  can  be used e.g. to decrypt password files on the fly or to query key rings,
              and thus to avoid storing plain text passwords.

       ntlmdomain [domain]
              Set a domain for the ntlm authentication method. This is obsolete.

       tls [(on|off)]
              Enable or disable TLS (also known as SSL) for secured connections.  You  also  need
              tls_trust_file  or  tls_fingerprint,  and  for some servers you may need to disable
              tls_starttls.
              Transport Layer Security  (TLS)  "...  provides  communications  privacy  over  the
              Internet.   The  protocol allows client/server applications to communicate in a way
              that is designed to prevent eavesdropping, tampering, or  message  forgery"  (quote
              from RFC2246).
              A  server  can  use  TLS  in  one of two modes: via a STARTTLS command (the session
              starts with the normal protocol initialization, and TLS is then started  using  the
              protocol's  STARTTLS command), or immediately (TLS is initialized before the normal
              protocol initialization; this requires a separate port).  The  first  mode  is  the
              default, but you can switch to the second mode by disabling tls_starttls.
              When  TLS  is started, the server sends a certificate to identify itself. To verify
              the server identity, a client program is expected to check that the certificate  is
              formally  correct  and  that it was issued by a Certificate Authority (CA) that the
              user trusts. (There can also be certificate chains with intermediate CAs.)
              The list of trusted CAs is specified using  the  tls_trust_file  command.   Usually
              there      is     some     system-wide     default     file     available,     e.g.
              /etc/ssl/certs/ca-certificates.crt on Debian-based systems, but you can also choose
              to select the trusted CAs yourself.
              One  practical  problem  with  this approach is that the client program should also
              check if the  server  certificate  has  been  revoked  for  some  reason,  using  a
              Certificate  Revocation  List  (CRL).  A  CRL  file  can  be  specified  using  the
              tls_crl_file command, but getting the relevant CRL files and  keeping  them  up  to
              date is not straightforward. You are basically on your own.
              A much more serious and fundamental problem is is that you need to trust CAs.  Like
              any other organization, a CA  can  be  incompetent,  malicious,  subverted  by  bad
              people,  or  forced  by government agencies to compromise end users without telling
              them. All of these things happened and continue to happen worldwide.  The  idea  to
              have  central  organizations  that  have to be trusted for your communication to be
              secure is fundamentally broken.
              Instead of putting trust in a CA, you can choose to trust only a single certificate
              for  the  server  you want to connect to. For that purpose, specify the certificate
              fingerprint with tls_fingerprint. This makes sure  that  no  man-in-the-middle  can
              fake  the  identity of the server by presenting you a fraudulent certificate issued
              by some CA that happens to be in your trust list.  However, you have to update  the
              fingerprint whenever the server certificate changes, and you have to make sure that
              the change is legitimate each time, e.g. when the old certificate expired. This  is
              inconvenient, but it's the price to pay.
              Information  about  a  server  certificate  can be obtained with --serverinfo --tls
              --tls-certcheck=off. This includes the issuer CA of the  certificate  (so  you  can
              trust  that  CA via tls_trust_file), and the fingerprint of the certificate (so you
              can trust that particular certificate via tls_fingerprint).
              TLS also allows the server to verify the identity of the client. For this  purpose,
              the  client  has to present a certificate issued by a CA that the server trusts. To
              present that certificate, the client also needs the matching key file. You can  set
              the  certificate and key files using tls_cert_file and tls_key_file. This mechanism
              can also be used to  authenticate  users,  so  that  traditional  user  /  password
              authentication is not necessary anymore. See the external mechanism in auth.

       tls_starttls [(on|off)]
              Choose  the TLS variant: start TLS from within the session (on, default), or tunnel
              the session through TLS (off).

       tls_trust_file file
              Activate server certificate verification using  a  list  of  trusted  Certification
              Authorities  (CAs).  The file must be in PEM format. Some systems provide a system-
              wide default file, e.g. /etc/ssl/certs/ca-certificates.crt on Debian-based  systems
              with the ca-certificates package.  An empty argument disables this. You should also
              use tls_crl_file.

       tls_crl_file [file]
              Set a certificate revocation  list  (CRL)  file  for  TLS,  to  check  for  revoked
              certificates. An empty argument disables this.

       tls_fingerprint [fingerprint]
              Set  the  fingerprint  of  a single certificate to accept for TLS. This certificate
              will be trusted regardless of its contents.  The  fingerprint  should  be  of  type
              SHA256,  but  can  for  backwards compatibility also be of type SHA1 or MD5 (please
              avoid this).   The  format  should  be  01:23:45:67:....   Use  --serverinfo  --tls
              --tls-certcheck=off --tls-fingerprint= to get the server certificate fingerprint.

       tls_key_file file
              Send  a  client  certificate to the server (use this together with tls_cert_file}).
              The file must contain the private key of a certificate  in  PEM  format.  An  empty
              argument disables this feature.

       tls_cert_file file
              Send a client certificate to the server (use this together with tls_key_file).  The
              file must contain a certificate in PEM format.  An  empty  argument  disables  this
              feature.

       tls_certcheck [(on|off)]
              Enable  or  disable checks of the server certificate.  WARNING: When the checks are
              disabled, TLS sessions will be vulnerable to man-in-the-middle attacks!

       tls_min_dh_prime_bits [bits]
              Set or unset the minimum number of Diffie-Hellman (DH) prime bits  that  mpop  will
              accept for TLS sessions.  The default is set by the TLS library and can be selected
              by using an empty argument to this command.  Only lower the default (for example to
              512 bits) if there is no other way to make TLS work with the remote server.

       tls_priorities [priorities]
              Set  the priorities for TLS sessions. The default is set by the TLS library and can
              be  selected  by  using  an  empty  argument  to  this  command.   See  the  GnuTLS
              documentation  of  the  gnutls_priority_init  function  for  a  description  of the
              priorities string.

       from envelope_from
              Set the envelope-from address. This address will only be  used  when  auto_from  is
              off.

       auto_from [(on|off)]
              Enable  or  disable  automatic  envelope-from  addresses. The default is off.  When
              enabled, an envelope-from address of the form user@domain will be  generated.   The
              local  part will be set to USER or, if that fails, to LOGNAME or, if that fails, to
              the login name of the current user.  The domain part can be set with the maildomain
              command.   If  the maildomain is empty, the envelope-from address will only consist
              of the user name and not have a  domain  part.  When  auto_from  is  disabled,  the
              envelope-from address must be set explicitly.

       maildomain [domain]
              Set a domain part for the generation of an envelope-from address. This is only used
              when auto_from is on. The domain may be empty.

       dsn_notify (off|condition)
              This command sets the condition(s) under which the  mail  system  should  send  DSN
              (Delivery  Status  Notification)  messages.  The argument off disables explicit DSN
              requests, which means the mail system decides when to send DSN  messages.  This  is
              the  default.   The  condition  must  be never, to never request notification, or a
              comma separated list (no spaces!) of one or more  of  the  following:  failure,  to
              request  notification  on  transmission  failure,  delay, to be notified of message
              delays, success, to be notified of successful transmission. The  SMTP  server  must
              support the DSN extension.

       dsn_return (off|amount)
              This command controls how much of a mail should be returned in DSN (Delivery Status
              Notification) messages. The argument off  disables  explicit  DSN  requests,  which
              means  the  mail system decides how much of a mail it returns in DSN messages. This
              is the default.  The amount must be headers, to just return the message headers, or
              full, to return the full mail.  The SMTP server must support the DSN extension.

       add_missing_from_header [(on|off)]
              This  command  controls whether to add a From header if the mail does not have one.
              The default is to add it.

       add_missing_date_header [(on|off)]
              This command controls whether to add a Date header if the mail does not  have  one.
              The default is to add it.

       remove_bcc_headers [(on|off)]
              This command controls whether to remove Bcc headers. The default is to remove them.

       logfile [file]
              An empty argument disables logging (this is the default).
              When  logging  is enabled by choosing a log file, msmtp will append one line to the
              log file for each mail it tries to send via the account  that  this  log  file  was
              chosen for.
              The  line  will  include the following information: date and time, host name of the
              SMTP server, whether TLS was used, whether authentication was used,  authentication
              user  name  (only  if  authentication  is  used),  envelope-from address, recipient
              addresses, size of the mail as transferred to the  server  (only  if  the  delivery
              succeeded),  SMTP  status  code and SMTP error message (only in case of failure and
              only if available), error message (only in case of failure and only if  available),
              exit code (from sysexits.h; EX_OK indicates success).
              If the filename is a dash (-), msmtp prints the log line to the standard output.

       syslog [(on|off|facility)]
              Enable  or  disable  syslog logging. The facility can be one of LOG_USER, LOG_MAIL,
              LOG_LOCAL0, ..., LOG_LOCAL7. The default is LOG_USER.
              Each time msmtp tries to send a mail via the  account  that  contains  this  syslog
              command, it will log one entry to the syslog service with the chosen facility.
              The  line  will  include  the  following information: host name of the SMTP server,
              whether TLS was used,  whether  authentication  was  used,  envelope-from  address,
              recipient  addresses,  size  of  the mail as transferred to the server (only if the
              delivery succeeded), SMTP status code and SMTP  error  message  (only  in  case  of
              failure  and only if available), error message (only in case of failure and only if
              available), exit code (from sysexits.h; EX_OK indicates success).

       aliases [file]
              Replace local recipients with addresses in the aliases file.  The aliases file is a
              plain  text  file  containing mappings between a local address and a list of domain
              addresses.  A local address is defined as one without an `@' character and a domain
              address is one with an `@' character.  The mappings are of the form:
                  local: someone@example.com, person@domain.example
              Multiple  domain  addresses are separated with commas.  Comments start with `#' and
              continue to the end of the line.
              The local address default has special significance and  is  matched  if  the  local
              address  is  not found in the aliases file.  If no default alias is found, then the
              local address is left as is.
              An empty argument  to  the  aliases  command  disables  the  replacement  of  local
              addresses.  This is the default.

EXAMPLES

       Configuration file

       # Example for a user configuration file ~/.msmtprc
       #
       # This file focusses on TLS and authentication. Features not used here include
       # logging, timeouts, SOCKS proxies, TLS parameters, Delivery Status Notification
       # (DSN) settings, and more.

       # Set default values for all following accounts.
       defaults

       # Use the mail submission port 587 instead of the SMTP port 25.
       port 587

       # Always use TLS.
       tls on

       # Set a list of trusted CAs for TLS. You can use a system-wide default file,
       # as in this example, or download the root certificate of your CA and use that.
       tls_trust_file /etc/ssl/certs/ca-certificates.crt

       # Additionally, you should use the tls_crl_file command to check for revoked
       # certificates, but unfortunately getting revocation lists and keeping them
       # up to date is not straightforward.
       #tls_crl_file ~/.tls-crls

       # A freemail service
       account freemail

       # Host name of the SMTP server
       host smtp.freemail.example

       # As an alternative to tls_trust_file/tls_crl_file, you can use tls_fingerprint
       # to pin a single certificate. You have to update the fingerprint when the
       # server certificate changes, but an attacker cannot trick you into accepting
       # a fraudulent certificate. Get the fingerprint with
       # $ msmtp --serverinfo --tls --tls-certcheck=off --host=smtp.freemail.example
       tls_fingerprint 00:11:22:33:44:55:66:77:88:99:AA:BB:CC:DD:EE:FF:00:11:22:33

       # Envelope-from address
       from joe_smith@freemail.example

       # Authentication. The password is given using one of five methods, see below.
       auth on
       user joe.smith

       # Password method 1: Add the password to the system keyring, and let msmtp get
       # it automatically. To set the keyring password using Gnome's libsecret:
       # $ secret-tool store --label=msmtp \
       #   host smtp.freemail.example \
       #   service smtp \
       #   user joe.smith

       # Password method 2: Store the password in an encrypted file, and tell msmtp
       # which command to use to decrypt it. This is usually used with GnuPG, as in
       # this example. Usually gpg-agent will ask once for the decryption password.
       passwordeval gpg2 --no-tty -q -d ~/.msmtp-password.gpg

       # Password method 3: Store the password directly in this file. Usually it is not
       # a good idea to store passwords in plain text files. If you do it anyway, at
       # least make sure that this file can only be read by yourself.
       #password secret123

       # Password method 4: Store the password in ~/.netrc. This method is probably not
       # relevant anymore.

       # Password method 5: Do not specify a password. Msmtp will then prompt you for
       # it. This means you need to be able to type into a terminal when msmtp runs.

       # A second mail address at the same freemail service
       account freemail2 : freemail
       from joey@freemail.example

       # The SMTP server of your ISP
       account isp
       host mail.isp.example
       from smithjoe@isp.example
       auth on
       user 12345

       # Set a default account
       account default : freemail

       Using msmtp with Mutt

       Create  a  configuration  file  for  msmtp  and  add  the  following  lines  to  your Mutt
       configuration file:
       set sendmail="/path/to/msmtp"
       set use_from=yes
       set realname="Your Name"
       set from=you@example.com
       set envelope_from=yes
       The envelope_from=yes option lets Mutt use the -f option of msmtp. Therefore msmtp chooses
       the first account that matches the from address you@example.com.
       Alternatively, you can use the -a option:
       set sendmail="/path/to/msmtp -a my-account"
       Or  set  everything  from  the  command line (but note that you cannot set a password this
       way):
       set     sendmail="/path/to/msmtp     --host=mailhub      -f      me@example.com      --tls
       --tls-trust-file=trust.crt"

       If  you  have multiple mail accounts in your msmtp configuration file and let Mutt use the
       -f option to choose the right one, you  can  easily  switch  accounts  in  Mutt  with  the
       following Mutt configuration lines:
       macro generic "<esc>1" ":set from=you@example.com"
       macro generic "<esc>2" ":set from=you@your-employer.example"
       macro generic "<esc>3" ":set from=you@some-other-provider.example"

       Using msmtp with mail

       Define a default account, and put the following in your ~/.mailrc:
       set sendmail="/path/to/msmtp"

       Using msmtp with Tor

       Use the following settings:
       proxy_host 127.0.0.1
       proxy_port 9050
       tls on
       Use  an  IP  address  as  proxy  host  name,  so that msmtp does not leak a DNS query when
       resolving it.
       TLS is required to prevent exit hosts from  reading  your  SMTP  session.  You  also  need
       tls_trust_file or tls_fingerprint to check the server identity.
       Do  not  set  domain  to something that you do not want to reveal (do not set it at all if
       possible).

       Aliases file

       # Example aliases file

       # Send root to Joe and Jane
       root: joe_smith@example.com, jane_chang@example.com

       # Send cron to Mark
       cron: mark_jones@example.com

       # Send everything else to admin
       default: admin@domain.example

FILES

       SYSCONFDIR/msmtprc
              System configuration file. Use --version to find out what  SYSCONFDIR  is  on  your
              platform.

       ~/.msmtprc or $XDG_CONFIG_HOME/msmtp/config
              User configuration file.

       ~/.netrc and SYSCONFDIR/netrc
              The  netrc  file contains login information. Before prompting for a password, msmtp
              will search it in ~/.netrc and SYSCONFDIR/netrc.

ENVIRONMENT

       USER, LOGNAME
              These variables override the user's login name when constructing  an  envelope-from
              address. LOGNAME is only used if USER is unset.

       TMPDIR Directory to create temporary files in. If this is unset, a system specific default
              directory is used.
              A   temporary   file   is   only   created   when   the   -t/--read-recipients   or
              --read-envelope-from option is used. The file is then used to buffer the headers of
              the mail (but not the body, so the file won't get very large).

       EMAIL, SMTPSERVER
              These environment variables are used only if neither --host nor --account  is  used
              and  there  is no default account defined in the configuration files. In this case,
              the host name is taken from SMTPSERVER, and the envelope from address is taken from
              EMAIL,  unless  overridden  by --from or --read-envelope-from. Currently SMTPSERVER
              must contain a plain host name (no URL), and EMAIL must contain a plain address (no
              names or additional information).

AUTHORS

       msmtp was written by Martin Lambers <marlam@marlam.de>.
       Other authors are listed in the AUTHORS file in the source distribution.

SEE ALSO

       sendmail(8), netrc(5) or ftp(1)

                                             2016-02                                     MSMTP(1)