Yes, me and $job are on OVH, moved the servers twice, so basically had moved over 6 IPs. Colleagues running on different providers though; Scaleway/Online mostly. I experimented a bit with hosting everything at home, which worked fine at the time for mail reception and delivery, but had to give up on it because it wasn’t very stable (I had hilarious smokeping at the time).

And, I’m just tired of the whole “you can’t host your mails” thing. It’s not all perfect, but on the rare occasion someone (usually a third party service selling both a blocking list AND an unblocking service…) flagged us, it was resolved in a day, with a single contact email. It happened twice in the last few years.