Mailing List Archive: remote smtp 521. Exim drops email silently! Bug?

remote smtp 521. Exim drops email silently! Bug?

Mar 31, 2021, 4:58 PM

Post #1 of 3 (252 views)

I got remote mail server that for some reason don't accept connections
from my IP this way:
# nc mx.poczta.onet.pl 25
220-mx.poczta.onet.pl ESMTP
521 5.7.1 Service unavailable; client [5.9.116.9] blocked using
postscreenbl.opbl.onet.pl.

Which is fine but my exim drops email from queue silently, no delivery
attempt is logged and bounce is not generated which obviously is
terrible.

2021-04-01 01:54:45 1lRkfc-0001w9-TQ <= test@xxxxxxxx H=(xxxxxxxx)
[127.0.0.1]:53112 I=[127.0.0.1]:587 P=esmtpa
A=fixed_plain:test@xxxxxxxxx S=1159
id=c90e9f920c38d302dfe2e213ab7b9cbc@xxxxxxxxxx T="test" from
<test@xxxxxxxxx> for sdfadbvzxcbert@poczta.onet.pl
2021-04-01 01:54:45 cwd=/var/spool/exim 3 args: /usr/exim/bin/exim -Mc
1lRkfc-0001w9-TQ
.

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Re: remote smtp 521. Exim drops email silently! Bug? [ In reply to ]

exim-users at exim

Apr 1, 2021, 1:52 AM

Post #2 of 3 (252 views)

Permalink

On 01/04/2021 00:58, krzf83--- via Exim-users wrote:
> I got remote mail server that for some reason don't accept connections
> from my IP this way:
> # nc mx.poczta.onet.pl 25
> 220-mx.poczta.onet.pl ESMTP
> 521 5.7.1 Service unavailable; client [5.9.116.9] blocked using
> postscreenbl.opbl.onet.pl.
>
> Which is fine but my exim drops email from queue silently, no delivery
> attempt is logged and bounce is not generated which obviously is
> terrible.
>
> 2021-04-01 01:54:45 1lRkfc-0001w9-TQ <= test@xxxxxxxx H=(xxxxxxxx)
> [127.0.0.1]:53112 I=[127.0.0.1]:587 P=esmtpa
> A=fixed_plain:test@xxxxxxxxx S=1159
> id=c90e9f920c38d302dfe2e213ab7b9cbc@xxxxxxxxxx T="test" from
> <test@xxxxxxxxx> for sdfadbvzxcbert@poczta.onet.pl
> 2021-04-01 01:54:45 cwd=/var/spool/exim 3 args: /usr/exim/bin/exim -Mc
> 1lRkfc-0001w9-TQ
> .
>

That message should be still in your queue, waiting for a retry.
Check with "mailq".

--
Cheers,
Jeremy

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## List details at https://lists.exim.org/mailman/listinfo/exim-users
## Exim details at http://www.exim.org/
## Please use the Wiki with this list - http://wiki.exim.org/

Re: remote smtp 521. Exim drops email silently! Bug? [ In reply to ]

exim-users at exim

Apr 1, 2021, 3:18 AM

Post #3 of 3 (252 views)

Permalink

krzf83--- via Exim-users <exim-users@exim.org> (Do 01 Apr 2021 01:58:43 CEST):
> I got remote mail server that for some reason don't accept connections
> from my IP this way:
> # nc mx.poczta.onet.pl 25
> 220-mx.poczta.onet.pl ESMTP
> 521 5.7.1 Service unavailable; client [5.9.116.9] blocked using
> postscreenbl.opbl.onet.pl.
>
> Which is fine but my exim drops email from queue silently, no delivery
> attempt is logged and bounce is not generated which obviously is
> terrible.
>
> 2021-04-01 01:54:45 1lRkfc-0001w9-TQ <= test@xxxxxxxx H=(xxxxxxxx) …
> 2021-04-01 01:54:45 cwd=/var/spool/exim 3 args: /usr/exim/bin/exim -Mc 1lRkfc-0001w9-TQ

Can you share the output of `exim -Mvl 1lRkfc-0001w9-TQ`?
There *should* be more.

--
Heiko

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