NAME

       pftobyfrom - List "to" addresses by "from" whom in Postfix log file

       Copyright (C) 2007-2025 by James S. Seymour, Release 1.3

SYNOPSIS pftobyfrom -[bhrRv] <sender> [mailfile]

           If no file(s) specified, reads from stdin.  Output is to stdout.

DESCRIPTION

           pftobyfrom parses Postfix log files to generate a list of "to" addresses,
           based on a specified "from" address or address fragment.

OPTIONS

           -b Include bounces

           -h Emit help message and exit

           -r Include rejects

           -R Hard rejects only

           -v Emit version and exit

RETURN VALUE

           pftobyfrom doesn't return anything of interest to the shell.

ERRORS

           Error messages are emitted to stderr.

EXAMPLES

           pftobyfrom example.com /var/log/maillog

           Generates a list of all the recipients of email from any senders
           in "example.com"

           As a convenience, pftobyfrom tries to intelligently determine how to
           handle regexp meta-characters.  If it's passed a search expression
           that does NOT contain meta-character escapes ("\"), it will assume
           that "." and "+" are literals, and will escape them for you.  In the
           example above, the "." in the FQDN part of the search term would've
           been automatically escaped for the user.  Likewise:

               pftobyfrom username+foo@example.com /var/log/maillog

           would have the "+" and "." escaped.  If you wanted to find all
           plussed senders for "username," you'd have to do:

               pftobyfrom 'username\+.+@example\.com' /var/log/maillog

SEE ALSO

           pflogsumm, pffrombyto

NOTES

           All search terms and searched fields are lower-cased.

           The pftobyfrom Home Page is at:

               http://jimsun.LinxNet.com/postfix_contrib.html

REQUIREMENTS

           Perl

LICENSE

           This program is free software; you can redistribute it and/or
           modify it under the terms of the GNU General Public License
           as published by the Free Software Foundation; either version 2
           of the License, or (at your option) any later version.

           This program is distributed in the hope that it will be useful,
           but WITHOUT ANY WARRANTY; without even the implied warranty of
           MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
           GNU General Public License for more details.

           You may have received a copy of the GNU General Public License
           along with this program; if not, write to the Free Software
           Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
           USA.

           An on-line copy of the GNU General Public License can be found
           http://www.fsf.org/copyleft/gpl.html.

1.1.13                                             2025-05-22                                      PFTOBYFROM(1)