Brewchin

competitive multiplayer

I feel it should be added that this is one use of anti-cheat, but it also gets used on noncompetitive single player games, too.

Usually if a game has micro-transactions, but also to “protect our IP” as has been seen with a number of older non-MTX single player games recently being retrofitted with it.

Hosting your own email server is a challenge, as DMARC, SPF and random hand waving by email companies (who should know better) make it needlessly problematic.

There’s also the issue of whether your home ISP allows inbound email ports (25/tcp, etc). A lot don’t.

It’s possible(?) a hosting provider can do decent email, but I tend to think of that like 1990s-era ISPs who provided email: liable to be discontinued at any time with little/no notice and not portable.

But it’s your call. Good luck.

Many email providers have an inbuilt tool that will handle all this for you.

Fastmail, for example. I switched to them 4-5 years ago, and the process of migrating over a decades worth of mail was straightforward and pretty quick.

https://www.fastmail.com/blog/migrate-to-fastmail/