[pfx] Re: cleanup(8): recipient_canonical can emit an over-long socketmap query with no operator guard; PERM then retried as 451
Dmytro Alieksieiev via Postfix-users <[email protected]> Fri, 17 Jul 2026 11:18:36 +0200
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Hi Wietse,
Thank you
Regards,
Dmytro Alieksieiev
DevOps Engineer
On 16/07/2026 22:01, Wietse Venema via Postfix-users wrote:
> Implemented for Postfix 3.12:
> https://www.postfix.org/postconf.5.html#socketmap_max_query_size
>
> socketmap_max_query_size (default: 10000)
> The maximum allowed query size for a socketmap client, not
> including the socketmap and netstring encapsulation. A
> request that exceeds the limit generates a warning and a
> 'not found' result.
>
> This feature is implemented in Postfix >= 3.12. The docuentation
> is almost complete.
>
> With older Postfix versions, use pipemap to suppress queries that
> the socketmap-based SRS server does not support.
>
> Wietse
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<p>Hi Wietse,</p>
<p>Thank you</p>
<pre class="moz-signature" cols="72">Regards,
Dmytro Alieksieiev
DevOps Engineer</pre>
<div class="moz-cite-prefix">On 16/07/2026 22:01, Wietse Venema via
Postfix-users wrote:<br>
</div>
<blockquote type="cite"
cite="mid:[email protected]">
<pre class="moz-quote-pre" wrap="">Implemented for Postfix 3.12:
<a class="moz-txt-link-freetext"
href="https://www.postfix.org/postconf.5.html#socketmap_max_query_size"
moz-do-not-send="true">https://www.postfix.org/postconf.5.html#socketmap_max_query_size</a>
socketmap_max_query_size (default: 10000)
The maximum allowed query size for a socketmap client, not
including the socketmap and netstring encapsulation. A
request that exceeds the limit generates a warning and a
'not found' result.
This feature is implemented in Postfix >= 3.12. The docuentation
is almost complete.
With older Postfix versions, use pipemap to suppress queries that
the socketmap-based SRS server does not support.
Wietse</pre>
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