NAME

       aiosmtpd - asyncio based SMTP server

       Provides  an  asynchronous, RFC 5321 compliant Simple Mail Transfer Protocol (SMTP) server
       that supports customizable extensions.

       Author The aiosmtpd Developers

       Date   2022-03-25

       Copyright
              2015-2021, The aiosmtpd Developers

       Version
              1.4.2

       Manual section
              1

SYNOPSIS

          usage: aiosmtpd [-h] [-v] [-n] [-c CLASSPATH] [-s SIZE] [-u] [-d]
                          [-l [[HOST][:PORT]]] [--smtpscert CERTFILE]
                          [--smtpskey KEYFILE] [--tlscert CERTFILE] [--tlskey KEYFILE]
                          [--no-requiretls]
                          [CLASSARGS ...]

   Options
       CLASSARGS
              Additional arguments passed to the handler CLASS.

       -h, --help
              show this help message and exit

       -v, --version
              show program's version number and exit

       -n, --nosetuid
              This program generally tries to setuid nobody, unless this flag is set.  The setuid
              call will fail if this program is not run as root (in which case, use this flag).

       -c <CLASSPATH>, --class <CLASSPATH>
              Use  the given class, as a Python dotted import path, as the handler class for SMTP
              events.  This class can process received messages and do other actions  during  the
              SMTP dialog.  Uses aiosmtpd.handlers.Debugging by default.

       -s <SIZE>, --size <SIZE>
              Restrict the total size of the incoming message to SIZE number of bytes via the RFC
              1870 SIZE extension. Defaults to 33,554,432 bytes.

       -u, --smtputf8
              Enable the SMTPUTF8 extension as defined in RFC 6531.

       -d, --debug
              Increase debugging output. Every -d increases debugging level by one.

       -l <[HOST][:PORT]>, --listen <[HOST][:PORT]>
              Optional host and port to listen on.  If the PORT part is not given, then port 8025
              is  used.   If  only  :PORT  is given, then localhost is used for the hostname.  If
              neither are given, localhost:8025 is used.

       --smtpscert <CERTFILE>
              The certificate file for implementing SMTPS. If  given,  the  parameter  --smtpskey
              must also be specified.

       --smtpskey <KEYFILE>
              The  key file for implementing SMTPS. If given, the parameter --smtpscert must also
              be specified.

       --tlscert <CERTFILE>
              The certificate file for implementing STARTTLS. If given,  the  parameter  --tlskey
              must also be specified.

       --tlskey <KEYFILE>
              The key file for implementing STARTTLS. If given, the parameter --tlscert must also
              be specified.

       --no-requiretls
              If  specified,  disables  require_starttls  of  the  SMTP   class.   (By   default,
              require_starttls  is  True.)  Has  no  effect  if  --tlscert  and  --tlskey are not
              specified.

ENVIRONMENT

       AIOSMTPD_CONTROLLER_TIMEOUT
              How long the main thread will wait (in seconds) until the SMTP thread is ready.
              Default: 1.0

AUTHOR

       The aiosmtpd Developers

COPYRIGHT

       2015-2022, The aiosmtpd Developers