On 2017-07-03, Andreas Sachs <andilist@???> wrote:
> Hello,
> i have a question to retry intervals of deferred messages.
>
> As far as i could see, if exims tries to send a message and receives a
> temporal error (deferred), all further messages to the same recipient
> are freezed until the retry interval is expired. This was observed with
> only one MX entry.
>
> I assume that a second delivery attemp will be started immediately if a
> second mx is present.
>
> What will happen if the second mx points to the same ip as the first?
> Does exim uses the name or the ip to maintain retry intervals?
> MX mx1.domain.de
> MX mx2.domain.de
> mx1.domain.de -> 1.2.3.4
> mx2.domain.de -> 1.2.3.4
If 1.2.3.4 says "450" exim will give up until after the apropriate retry
timer expires, there will not be an immediate retry on the "other" 1.2.3.4
> Reason for this question:
> I have trouble sending mail to an MX pool. There is only one MX entry
> with one IP-adress. But behind the IP-adress, there is a pool of
> multiple mail servers. But if the sending mail server receives a
> deferred message, it is not trying another server.
the load-balancer for that pool is broken.
> (i cannot change this setup)
I'm guessing whoever set that up wants it to be broken like that.
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