Hello Again, The servers are 1 Exchange and 1 Zimbra.
Can this work? 1: First server delivery via transport map. 2: Second delivery via address rewrite (recipient _bcc maps ) then transport map to the rewritten address. 3: At Zimbra rewrite address again and delivery to local mailbox. The solution is only required for incoming emails from the Internet. Clifford On Thu, 8 Apr 2021 at 15:55, Wietse Venema <wie...@porcupine.org> wrote: > Clifford Gonsalves: > > Hello, > > > > We are planning to deploy a Postfix SMTP gateway which will sit behind > our > > SPAM Firewall, how can I configure the Postfix SMTP gateway to delivery > all > > incoming emails from the SPAM Firewall to 2 backend mail server (both > > active-active). > > Postfix will deliver one email message in one SMTP transaction to > one SMTP server. It is up to you to replicate messages between > servers. For example, Dovecot implements message store replication. > > Wietse >
