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