[exim] Fwd: Re: malfunctioning email delivery after upgrade …

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Autor: Ján Lalinský
Data:  
A: exim-users
Assumpte: [exim] Fwd: Re: malfunctioning email delivery after upgrade to Exim 4.96

>> <mid> no immediate delivery: more than 10 messages received in one
>> connection
>
> That's not an error, only informative.
> See the main config option smtp_accept_queue_per_connection.


Actually it was an error for us, in the sense the email was not
delivered but stayed in the receiving Exim input dir, and it was
delivered only minutes (e.g. 37 minutes) later. This could be sped up to
"almost immediately after the first try" by running the exim -M <mid>
command).

>> We tried
>> settings
>>
>> smtp_accept_max_per_connection = 100
>> smtp_accept_queue_per_connection = 100
>>
>> in exim.conf, but to no avail.
>
> Then your daemon is not running that configuration.
> Did you restart it, after that edit?


Of course, I did restart Exim via

systemctl stop exim

(wait a few seconds)

systemctl start exim

I've tried several times, including deleting contents of
/var/spool/exim/db before starting the service. This did not help.

However, this error went away after downgrading Exim to 4.93 so we do
not encounter it anymore.


S pozdravem
Ján Lalinský

Webhosting C4
ČESKÝ WEBHOSTING s.r.o.
Tel: +420 222 292 444
E-mail: info@???
http://www.c4.cz

On 10/09/2022 11:32, Jeremy Harris via Exim-users wrote:
> On 04/09/2022 22:09, Ján Lalinský via Exim-users wrote:
>> ==rcpt@???  R=xxx (-36): host lookup for <imap_server> did not
>> complete (DNS timeout?)
>>
>> There is no problem with DNS resolution of the relevant domains on those
>> MX servers whatsover, judging by using dig and host command in shell.
>
> But judging by the error from Exim, there is.  Assuming that this
> name-resolution should have used DNS, of course.
>
>> <mid> no immediate delivery: more than 10 messages received in one
>> connection
>
> That's not an error, only informative.
> See the main config option smtp_accept_queue_per_connection.
>
>> We tried
>> settings
>>
>> smtp_accept_max_per_connection = 100
>> smtp_accept_queue_per_connection = 100
>>
>> in exim.conf, but to no avail.
>
> Then your daemon is not running that configuration.
> Did you restart it, after that edit?