Cyberpunk | Programmer | Ruby on Rails veteran | Nix user | Sysop | Mr. Fusion maintainer for the MiSTer project
In my experience (self hosting mail since 2005) signing up for SNDS does factor in. Although last time I had trouble with delivery to MS, my hosting provider Linode’s support also helped out by contacting MS back channels on my behalf. The biggest problem I (rarely) have is when whole IP blocks end up on a ban list that MS seems to really trust. That said, fuck it, I will keep fighting the fight and self host my mail like a stubborn old git :p
Have a look at https://www.keycloak.org/
I’ve recently switched my entire self hosted infrastructure to NixOS, but only after a few years of evaluation, because it’s quite a paradigm shift but well worth it imho.
Before that I used to stick to a solid base of Debian with some docker containers. There are still a few of those remaining that I have yet to migrate to my NixOS infra (namely mosquitto, gotify, nodered and portainer for managing them).
I’m still on Linode and have been for over a decade. Just very sad to have seen them lose their independence after selling to Akamai. Prices went up immediately and the whole “family of sysadmins working for sysadmins” feeling was gone.
You’re absolutely right about the perception. You make a good point. I’m not sure OP got that you’re not trying to talk them out of self hosting, but rather bring up the importance of reliability regardless of their setup. Thanks!