1POSTSRSD(8)             System Administration Utilities            POSTSRSD(8)
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NAME

6       postsrsd - Postfix Sender Rewriting Scheme daemon
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SYNOPSIS

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

12       Sender Rewriting Scheme implementation for Postfix.
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14       Implements  two  TCP lookup tables to rewrite mail addresses as needed.
15       The forward SRS is for sender envelope addresses to prevent SPF-related
16       bounces.  The  reverse  SRS is for recipient envelope addresses so that
17       bounced mails can be routed back to their original sender.
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OPTIONS

20       -s<file>
21              read secrets from file (required)
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23       -d<domain>
24              set domain name for rewrite (required)
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26       -a<char>
27              set first separator character which can be one of: -=+ (default:
28              =)
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30       -n<num>
31              length of hash to be used in rewritten addresses (default: 4)
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33       -N<num>
34              minimum length of hash to accept for validation (default: 4)
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36       -l<addr>
37              set socket listen address (default: 127.0.0.1)
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39       -f<port>
40              set port for the forward SRS lookup (default: 10001)
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42       -r<port>
43              set port for the reverse SRS lookup (default: 10002)
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45       -p<pidfile>
46              write process ID to pidfile (default: none)
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48       -c<dir>
49              chroot to <dir> (default: none)
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51       -u<user>
52              switch user id after port bind (default: none)
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54       -t<seconds>
55              timeout for idle client connections (default: 1800)
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57       -X<domain>
58              exclude additional domain from address rewriting
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60       -e     attempt to read above parameters from environment
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62       -D     fork into background
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64       -4     force IPv4 socket (default: any)
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66       -6     force IPv6 socket (default: any)
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68       -h     show this help
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70       -v     show version
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74postsrsd 1.4                       July 2019                       POSTSRSD(8)
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