Neo

You may have already read this but I always think back to this blog post about self hosted email:

TLDR;

• Mail is not hard: people keep repeating that because they read it, not because they tried it
• Big Mailer Corps are quite happy with that myth, it keeps their userbase growing
• Big Mailer Corps control a large percentage of the e-mail address space which is good for none of us
• It’s ok that people have their e-mails hosted at Big Mailer Corps as long as there’s enough people outside too

https://poolp.org/posts/2019-08-30/you-should-not-run-your-mail-server-because-mail-is-hard/

Amazon SES is good for this too. I use it in combination with postfix for the outbound mail. Granted it feels a bit like cheating on the whole self hosting part, at least for outbound. And I only started doing it in the past year of self hosting for 20 years. MS (Hotmail, Outlook, Office 365) was by far the biggest asshole in randomly denying delivery from my (well maintained reputation wise and well configured) outbound IP before switching to an SES relay. Fuck em, seriously. It’s not just about preventing spam, it’s clearly a strategy towards email dominance. Other big players are guilty of this too though.