Re: [exim] Broken pipe > MYSQL: no data found

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Szerző: Andrew C Aitchison
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Címzett: exim-users
Tárgy: Re: [exim] Broken pipe > MYSQL: no data found
On Tue, 25 Oct 2022, Jeremy Harris via Exim-users wrote:

> On 25/10/2022 09:10, Cyborg via Exim-users wrote:
>> 2022-10-25 07:36:45 1onCcF-002IAu-0b malware acl condition: clamd  :
>> unable to send file body to socket (83.x.x.x): Broken pipe
>
> That "broken pipe" is from the "malware" ACL condition code sending
> the mail message data to clamd via a TCP connection. Clamd closed
> the connection.
>
> If your clamd is on the same system as your exim, you could use
> a Unix-domain connection, or annotate the TCP conn spec as being local;
> then only the filename for the message need be passed


Assuming that the clam daemon has permission to read the file.
If not perhaps passing the file-handle (as in "clamdscan --fdpass"
- which requires a unix socket), rather than the file-name,
may be an option.

> rather than
> the whole content, which might be more efficient. Of course, that
> won't stop clamd failing in interesting ways on massive messages.



> You might prefer to only virus-scan smaller messages, by
> checking $message_size.
>
>> 2022-10-25 07:36:45 1onCcF-002IAu-0b H=X [x.x.x.x]
>> X=TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256 CV=no F=<YYY@YYY> temporarily
>> rejected after DATA: MYSQL: no data found
>
> The word "MYSQL" is not in this part of the sourcecode.
> I suspect that "MYSQL: no data found" error comes from a different part
> of your configuration-defined processing, even if the lack
> of virus-scan result is the cause.
>
>> the mysql modul also looses it's connection to the database
>
> Not proven. Check using Exim's debug facilities.
> --
> Cheers,
> Jeremy
>
>
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-- 
Andrew C. Aitchison                      Kendal, UK
                    andrew@???