##### lm_groupsio.rc
#
# Resource file for procmail.
# Filters list messages from lists handled by groups.io.
#
# Variables, in (set before calling):
#   LISTNAME		List name (e.g. between [...] in Subject:).
#   LISTEMAIL		Address of list (leave out part after @ and any generic
#			  parts like -return); defaults to LISTNAME.
#   LISTSERVERDOMAIN	Domain of the list server handling this list
#			  (the part after @).
#   LISTFOLDER		Where to store email if it's from this list;
#			  nothing will be stored if this is empty.
#   LISTFOLDER_UMASK	If set, umask to use when saving to LISTFOLDER.
#   PROCDIR		Directory where the procmail resource files are stored.
#   These may be unused by some of the listserver handlers (lm_*.rc):
#   LISTTO		Your address to which list emails are sent.
# Variables, returned:
#   ISTHISLIST		Set to "1" if email is from this list, unset otherwise.
#   LISTEMAIL		Unset.
#
# Run with e.g.:
#   LISTNAME="Weather Discussion"
#   LISTEMAIL="weatherdisc"
#   LISTSERVERDOMAIN="weather.net"
#   LISTFOLDER=somepath/weather-List
#   INCLUDERC=yourpath/lm_template.rc
# in your $HOME/.procmailrc (you can leave out LISTEMAIL if it's the same as
# LISTNAME).
#
# The latest version is always available from:
#   http://volker.top.geek.nz/soft/procmail/
#
# Copyright (C) by Volker Kuhlmann
#               http://volker.top.geek.nz/contact.html
# Released under the terms of the GNU General Public License (GPL) Version 2.
# See http://www.gnu.org/ for details.
#
# Volker Kuhlmann
#   31 Mar 2020  Created from lm_template.rc.
#

## LISTEMAIL defaults to LISTNAME
:0
* LISTEMAIL ?? ^^^^
{ LISTEMAIL=$LISTNAME }


## Set ISTHISLIST if match occurs
ISTHISLIST=
#LSERVERDOM__="(yahoogroups|egroups|onelist).com"


## Admin (subscribe/unsubscribe) email:
#
# Reply-to: is set in confirmation request email, but not in welcome email.
#
# The "welcome to groups.io" can't be filtered for this list because it is not
# specific to the list, only to groups.io.
#
:0
* $ ^Return-Path: <(invite|notice)bounce[a-z0-9+_.-]+@groups\.io>
* $ ^From:.*<$LISTNAME\+(invite[a-z0-9+_.-]+|owner)@groups\.io>
#* $ ^Reply-To:.*<$LISTNAME\+invite[a-z0-9+_.-]+@groups\.io>
* $ ^Subject:.*$LISTNAME@groups\.io
* $ ^Message-ID: <[a-z0-9+_.-]+@groups\.io>
* $ ^DKIM-Signature:.*=groups\.io;
{ ISTHISLIST=1 }


## List email:
:0
* $ ^Return-Path: <bounce[a-z0-9+_.-]+@groups\.io>
* $ ^Subject:.*\[$LISTNAME]
* $ ^X-Received: from .*by .*with .*for <$LISTNAME@groups\.io>;
* $ ^List-Unsubscribe:.*//.*groups\.io.*/$LISTNAME/
* $ ^Sender: $LISTNAME@groups\.io
* $ ^List-Id: <$LISTNAME.groups\.io>
* $ ^Mailing-List: list $LISTNAME@groups\.io;
* $ ^DKIM-Signature:.*=groups\.io;
{ ISTHISLIST=1 }


## If match occurred and LISTFOLDER is set, save to LISTFOLDER
:0
* ISTHISLIST ?? ^^1^^
* ! LISTFOLDER ?? ^^^^
{
  :0
  * ! LISTFOLDER_UMASK ?? ^^^^
  { UMASK=$LISTFOLDER_UMASK }
  :0 :
  $LISTFOLDER
}

LISTEMAIL=
#LSERVERDOM__=

##### EOF lm_groupsio.rc