On Sun, 27 Apr 2014 13:19:46 -0400, "another customer" wrote: >I read the previous post. As far as I know we just use sendmail so will >we need to make modifications to sendmail rules for DMARC to work? For sites still running sendmail who can't switch to Postfix there is a way using Procmail if LISTSERV is running on its own hostname, such that all mail to LISTSERV.EXAMPLE.COM should go to the LISTSERV service. First, you would need to add the following to /etc/mail/virtusertable: [log in to unmask] listserv @listserv.example.com lsvproc Generally, one needs to hash the file: # cd /etc/mail # makemap hash virtusertable < virtusertable Then add the virtual user to /etc/aliases: listserv: "|/usr/local/bin/lsv_amin /home/listserv/spool listserv" lsvproc: "|/usr/bin/procmail /etc/procmail-listserv.rc" And then your procmail-listserv.rc file looks like this: SHELL=/bin/sh VERBOSE=0 PATH=/usr/bin:/usr/ucb:/bin:/usr/local/bin:. MAILDIR=/home/listserv LOGFILE=/var/log/procmail.log DEFAULT=/dev/null SENDMAIL=/usr/sbin/sendmail.sendmail TO=`formail -xTo: |perl -pe 's/(\@listserv.example.org|<|>)//gi'` :0 * |/usr/local/bin/lsv_amin /home/listserv/spool $TO Obviously, make sure paths and hostnames are appropriate for your environment. You may also need to allow procmail to run via /etc/smrsh. (Note: commands and procmail-listserv.rc intentionally indented for clarity. In actuality, they will not be indented.) ############################ To unsubscribe from the LSTSRV-L list: write to: mailto:[log in to unmask] or click the following link: http://peach.ease.lsoft.com/scripts/wa-PEACH.exe?SUBED1=LSTSRV-L&A=1