Alex: > Hi, > I have a postfix-3.5.10 system and am trying to process mail prior to > it being forwarded to another domain that has multiple MX records. > Many years ago I used fallback_relay in master.cf but now it appears > to be referenced as smtp_fallback_relay?
It has been renamed for clarity. For backwards compatibility, the default setting is smtp_fallback_relay = $fallback_relay > I don't understand the syntax for adding multiple relays and whether smtp_fallback_relay (default: $fallback_relay) Optional list of relay hosts for SMTP destinations that can't be found or that are unreachable. With Postfix 2.2 and earlier this parameter is called fallback_relay. That would be a list of names separated by comma and/or whitespace. And, this has nothing to do with transports. It has always been a Postfix SMTP client feature that simply appends some hosts to the list of MX hosts. Wietse