I use both. I have a self hosted docker compose instance of mailcow, which alerts me when an update is available.
I also use protonmail as well.
Self hosting was a pain in the ass to get working, but I’ve had no issues with it once up. I tossed it behind a reverse proxy to keep it from directly touching the internet.
What is your ‘deleted files’ policy? How long do you keep them? I had a similar issue but then found out that the nextcloud cron-process wasn’t running so files in the ‘deleted files’ folder where never really deleted.
Self-hosting email is not at all easy, and I’d recommend paying for hosted email from a service that lets you use a custom domain. Most will let you have multiple inboxes, although this may cost extra.
Then, just buy a domain (NameCheap is fine) and point your MX records at the email provider.
I honestly dont see how mail can be reliably self hosted, and be accepted by the majority of filters. Especially as we move farther and farther into the world of limited IPv4 availability.
All it takes is for your IP to be listed as spam, and a large number of companies out there are going to put you in junk, or worse drop you completely.
Add on top of that the issue of reliability, and I just can’t fathom hosting myself. It makes much more sense to me for email to be one of the only things you do third party.
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