On Mon, 23 Mar 2026 15:36:42 +0100
Matus UHLAR - fantomas via Postfix-users <[email protected]>
wrote:
With DNS round-robin your users will complain whene either one of IP
addresses is unreachable. Long time ago we (at my former job) left this way
and moved to load-balancer.
On 23.03.26 15:08, Sad Clouds via Postfix-users wrote:
I think it depends on the IMAP MUA. As far as I know some are quite
primitive and only take the first IP address in the list, others are
more intelligent and can try the next IP address if the first returns
failures.
When the first return failures - but when the first address is unreachable,
it takes a while to timeout, which will users consider "slow" and will
complain about that.
Btw, which IMAP/SMTP client will retry another IP if one returns failure?
Since this is only going to be used by myself and a few other people,
we can work around those issues you mentioned. But I agree, it can be
an issue in some environments.
Yes, if you have just a few people capable of understanding the issue, they
may live with it.
--
Matus UHLAR - fantomas, [email protected] ; http://www.fantomas.sk/
Warning: I wish NOT to receive e-mail advertising to this address.
Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu.
I just got lost in thought. It was unfamiliar territory.
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