Ask HN: What are you using to host your email?

Not the person you are replying to but I keep email on a tiny VPS for a few domains mostly for things that are behind an email-wall. Not quite throw-away but I control the access, logs, limits, etc... I set up FCrDNS+SPF+DMARC but no DKIM on those. Nowadays if people create new VPS accounts they will have to open a ticket to get port 25 outbound opened up. It's a per account basis on many VPS providers now and requires agreeing to not abuse it or lose the account.

There are only three businesses that have ever blocked email from or to me and two of them were cellular service providers. They all appear to use the same anti-fraud service. [Edit: and Tractor Supply]. I use that when I want to email someone that I am certain will abuse my email address or domain or if I want to receive a massive file or set of files from someone. That keeps the noise off Fastmail which I also use, mostly for family and business related stuff. With Fastmail I pull the emails off the server as fast as I can using Thunderbird in the event they get popped by citizen or government attackers such as the AU government should they do mass surveillance some day. Fastmail is under AU jurisdiction. As a side note, Thunderbird makes PGP encrypting emails trivial.

Another nifty thing one can do on their own mail server is pin TLS certs of specific people or businesses to see if something has changed. Not everyone would need this but monitoring certs with bash+openssl is super easy. It's useful for fringe cases.