Quoting Jonathan Tripathy <jon...@abpni.co.uk>:
Hi Folks,
Does anyone know how to make a backup MX server query the primary mx
server if a mailbox exsists, before accept the contents of the mail?
I have a problem with MAILER-DAEMON messages...
Thanks
That might not be the right problem to fix. If the primary mx is down,
the backup mx might not have anything to query.
You might want to have the primary mx export a list of valid users
periodically as a text file, then have the backup server pick it up
with rsync, then postfix can use it to validate recipients.
Terry
