Am 11. Dezember 2019 um 03:26 Uhr +0900 schrieb Stephen J. Turnbull:
Well, since it's predicated on a bug in Postfix, I wouldn't bet on it, especially since Postfix probably dominates Mailman 3 installations. But it's cheap to test, and since you don't explicitly want SMTP UTF8 at this point, little harm in turning it off. *If* there is a bug, that will prevent the problem in the future, but it wouldn't fix the problem in the held messages queue.
I've now set "smtputf8_enable" to "no". Let's hope this prevents further problems like this.
For the rest, I've followed up with Mark in the other post. The "var_dir" is set to "/var/lib/mailman3" for me.
I'm starting to wonder about this. It's still possible, but if you don't deliberately use SMTP UTF8 then your mail client probably doesn't either, and equally possibly it's a different message causing the problem (something spammy).
Given the amount of spam messages I found in /var/lib/mailman3, this is not at all unlikely.
Marvin
-- Blog: https://mg.guelker.eu