[COFF] Latest delivery problem worked around (was: Don't be too secure)

Greg 'groggy' Lehey via COFF coff at tuhs.org
Fri Apr 10 11:51:41 AEST 2026


On Thursday,  9 April 2026 at 20:28:46 -0500, COFF wrote:
> Hi Greg,
>
> At 2026-04-10T10:48:38+1000, Greg 'groggy' Lehey via COFF wrote:
>> Warren seems to have found the reason why my posts haven't been
>> reaching TUHS (and presumably this list too): they're GPG signed, and
>> that's too secure for the latest version of mailman!  This message is
>> partially to grumble and partially to check whether the messages now
>> go through.  Warren sent me this link:
>>
>>   https://lists.mailman3.org/archives/list/mailman-users@mailman3.org/thread/B7BQKRQMA6LOE7RZJCEOOEW7MUEQH7U7/
>>
>> I'm not overly secure, but cryptographic signatures have so far been
>> only refused by systems in the Microsoft space.
>>
>> The only problem with this: so far our changes haven't worked.  If you
>> get this message, we have finally succeeded on try 4.
>
> My mails have the same property and seem to have suffered the same
> problem.  Warren ventured that fixing your issue might fix mine.
>
> Since I did in fact see your message, I'm hopeful.

Thanks!  It seems that this attempt FINALLY produced something, and in
particular that your message also got through.

Background: I'm doing this because Warren is busy with a Real Life.
mailman3 rejects certain MIME types, including
application/pgp-signature and apparently multipart/signed.  Warren had
already allowed application/pgp-signature, and I allowed
multipart/signed, which seems to have done the trick.  We had been
trying to second-guess, not made any easier by some mailman3
peculiarities.  In particular, it should inform the sender when a
message gets rejected, but I have never seen that.  And the log
messages describing the rejection are also too polite to mention the
attachment type to which it objects.

Greg
--
Sent from my desktop computer.
Finger grog at lemis.com for PGP public key.
See complete headers for address and phone numbers.
This message is digitally signed.  If your Microsoft mail program
reports problems, please read http://lemis.com/broken-MUA.php
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