I’m having a weird behavior here: at least once a week the system stops processing the queue, and in most, but not all the cases the problem is in Spamassassin. A few times times ClamAV is stopped, but sometimes none of the two are stopped.
It is a home server, so to make it simple I just reboot the whole Debian VM.
This works most of the time, UNLESS one of the two first emails is an Axigen-generated statistics email. Deleting this specific email allows the system to resume operation.
Any idea what is so relevant regarding this statistics email?