* Corey Hickman via Postfix-users <postfix-users@postfix.org>:
We have 3 smtp servers for sending messages. When mail in one
server has
delivery issue, how can we setup it to use another more servers for
second/third delivery?
Ralf Hildebrandt via Postfix-users skrev den 2023-05-04 14:41:
You could use smtp_fallback_relay
On 04.05.23 15:15, Benny Pedersen via Postfix-users wrote:
this will work for mx with one ipv4, one ipv6, but fails if mx have
more ips, think greylistning forever
if the OP only configures one mailserver as smtp_fallback_relay
- which is recommended
delivery delays won't get significantly higher, and they happen only for
mail that wasn't immediately delivered, which means delay already happened.
switching outgoing IPs between delivery attempts causes delays no matter if
you use fallback relay or not.
--
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