After some users have had issues recently, I’ve finally gotten around to putting in place a better solution for outbound email from this instance. It now sends out via Amazon SES, rather than directly from our OVH VPS.
The result is emails should actually get to more people now, rather than being blocked by over-enthusiastic spam filters… looking at you Outlook and Gmail.
I should look at settings more often. Feel like some of this wasn’t there last i looked, which was probably at the start of the year.