NAME

       postsrsd - Postfix Sender Rewriting Scheme daemon

SYNOPSIS

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

DESCRIPTION

       Sender Rewriting Scheme implementation for Postfix.

       Implements  two  TCP lookup tables to rewrite mail addresses as needed. The forward SRS is
       for sender envelope addresses to prevent SPF-related  bounces.  The  reverse  SRS  is  for
       recipient  envelope  addresses  so that bounced mails can be routed back to their original
       sender.

OPTIONS

       -s<file>
              read secrets from file (required)

       -d<domain>
              set domain name for rewrite (required)

       -a<char>
              set first separator character which can be one of: -=+ (default: =)

       -f<port>
              set port for the forward SRS lookup (default: 10001)

       -r<port>
              set port for the reverse SRS lookup (default: 10002)

       -p<pidfile>
              write process ID to pidfile (default: none)

       -c<dir>
              chroot to <dir> (default: none)

       -u<user>
              switch user id after port bind (default: none)

       -t<seconds>
              timeout for idle client connections (default: 1800)

       -X<domain>
              exclude additional domain from address rewriting

       -e     attempt to read above parameters from environment

       -D     fork into background

       -4     force IPv4 socket (default: any)

       -6     force IPv6 socket (default: any)

       -h     show usage information

       -v     show version