via Mailman-users writes:
> I have a mailing list that, due to specific circumstances, has a
> requirement to allow messages from a user that sends messages with
> no subject.
Do you mean "any user who sends a message with no subject", or are
there specific users who do this? If there is one such user (or a
handful), and you trust that user not to abuse the privilege, you can
directly pre-approve that user from Users menu in the list
configuration (see Mark's post for details). This also works if there
is no Subject field at all!
If you don't know who might post with no subject (or there are
annoyingly many, especially if some are less than clueful), you could
use the header match:
> I also added header filters to immediately accept the message, but
> they still get held. Specifically, the rules I defined are:
> [...]
Those were all incorrect. What you want is
> Header, Pattern, Action
>
> subject, ^\s*([[{(]?no[_ ]subject[]})]?)?\s*$, Accept Immediately
I believe the surrounding whitespace is stripped, so the "\s*" are
unnecessary but do no harm since they match 0 spaces. However this
has two potential flaws: it doesn't work if there is no Subject field
at all, and it allows anyone to bypass all of Mailman's checks.
Finally, there is the "pre-approved" mechanism. It's a little bit
complicated because it requires setting a moderator password, which
has to be done using the Python interpreter; there's no option in
Postorius. It also requires a small bit of clue from the poster to
add the password to the post, preferably in the header (but it can
also be the first line). In either case the password is removed
before distribution. For details, see
https://docs.mailman3.org/projects/mailman/en/latest/src/mailman/rules/docs/approved.html
> Is there a better way to bypass this rule?
Each of the three approaches has advantages and disadvantages, so
you'll have to decide.
--
GNU Mailman consultant (installation, migration, customization)
Sirus Open Source https://www.siriusopensource.com/
Software systems consulting in Europe, North America, and Japan
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