[Mimedefang] New errors following update to 2.85

[Giovanni Bechis]

On Wed, Nov 10, 2021 at 03:23:25PM -0700, Philip Prindeville via MIMEDefang wrote:
> Hi,
> 
> I just updated my mail server from Fedora 33 to Fedora 34, and I noticed right away seeing these messages:
> 
> Nov 10 14:37:17 localhost mimedefang.pl[9141]: 1AALbHB8009400: relay: vger.kernel.org (23.128.96.18:56344 => 192.168.4.3:25)
> Nov 10 14:37:22 localhost mimedefang.pl[7873]: 1AALbHB8009400: helo: vger.kernel.org (23.128.96.18:56344) said "helo vger.kernel.org"
> Nov 10 14:37:22 localhost sendmail[9400]: 1AALbHB8009400: from=<netdev-owner at vger.kernel.org>, size=400289, class=-60, nrcpts=1, msgid=<20211110063928.GB30217 at xsang-OptiPlex-9020>, bodytype=8BITMIME, proto=ESMTP, daemon=MTA-v4, relay=vger.kernel.org [23.128.96.18]
> Nov 10 14:39:22 localhost sendmail[9400]: 1AALbHB8009400: Milter (mimedefang): timeout before data read, where=eom
> Nov 10 14:39:22 localhost sendmail[9400]: 1AALbHB8009400: Milter (mimedefang): to error state
> Nov 10 14:39:22 localhost sendmail[9400]: 1AALbHB8009400: Milter: data, reject=451 4.3.2 Please try again later
> Nov 10 14:39:22 localhost sendmail[9400]: 1AALbHB8009400: to=<foo at bar.com>, delay=00:02:00, pri=538289, stat=Please try again later
> Nov 10 14:43:38 localhost mimedefang.pl[8384]: 1AALbHB8009400: MDLOG,1AALbHB8009400,mail_in,,,<netdev-owner at vger.kernel.org>,<philipp_subx at redfish-solutions.com>,[af_unix]  95e381b609: WARNING:possible_recursive_locking_detected
> Nov 10 14:43:38 localhost mimedefang[1258]: 1AALbHB8009400: smfi_addheader returned MI_FAILURE
> 
> Looking through the logs, this happens over and over, and only with the delivery of this one message.  Since it can't be delivered for some reason, I looked it up on MARC:
> 
> https://marc.info/?l=linux-netdev&m=163652637632433&w=2
> 
> Anyone have an idea what's going on?  Is there a timeout I need to increase?
> 
you are hitting R=2m timeout while milter is sending data to mimedefang,
this may happen when some code inside mimedefang.pl times out for a
reason (antispam, antivirus ?).
The code that triggers the problem may be near a call to
action_add_header or action_change_header in your mimedefang-filter.

> Looking at:
> 
> Xmimedefang, S=unix:/var/spool/MIMEDefang/mimedefang.sock, F=T, T=S:2m;R:2m;E:10m
> 
> That looks like plenty...  
> 
> Other than that, everything seems to be working fine (well, I did have to change the $qid variable to filter_relay() and filter_helo() as that changed, but that was relatively minor).
> 
> BTW: who now owns the direction of development of MimeDefang?  Who is the designer-in-chief?
> 
MIMEDefang development now happens on https://github.com/The-McGrail-Foundation/MIMEDefang
You can find some info about MIMEDefang project management at https://mimedefang.org/mimedefang-project-charter/

 Giovanni
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