NAME

       PostSRSd - Sender Rewriting Scheme daemon for Postfix

SYNOPSIS

       postsrsd -s<file> -d<domain> [other options]

DESCRIPTION

       Sender Rewriting Scheme implementation for Postfix.

       The  Sender  Rewriting  Scheme (SRS) is a technique to forward mails from domains which deploy the Sender
       Policy Framework (SPF) to prohibit other Mail Transfer Agents (MTAs) from sending mails on their  behalf.
       With  SRS, an MTA can circumvent SPF restrictions by replacing the envelope sender with a temporary email
       address from one of their own domains. This temporary address is bound to the original  sender  and  only
       valid for a certain amount of time, which prevents abuse by spammers.

OPTIONS

       -h     show help

       -C<file>
              load configuration from <file> (default: /usr/local/etc/postsrsd.conf)

       -c<dir>
              use <dir> as chroot directory (default: /usr/local/var/lib/postsrsd)

       -D     daemonize by forking into background

       -p<file>
              write PostSRSd process ID into <file>

       -u<user>
              drop root privileges and run as <user> (default: nobody)

       -v     show version number

postsrsd                                            May 2024                                         POSTSRSD(8)