Anonymous email forwarding
AnonAddy - https://github.com/anonaddy/anonaddy/blob/master/SELF-HOSTING.md OR SimpleLogin.io The real issue you are going to face is being able to receive emails on your server. If you are trying to do this at home, most home ISPs block incoming port 25. Even on most cloud providers you will face the same problem.
mailcow: dockerized - 🐮 + 🐋 = 💕
But its probably easier to use a dockerized container with all the mail stuff integrated and pre-setup like: https://mailcow.email/
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Throwaway email options
3 projects | /r/selfhosted | 8 Sep 2021
The City of Seattle Accidentally Gave Me 32M Emails for 40 Dollars
4 projects | news.ycombinator.com | 24 Oct 2023
I gave a shop my phone number today. They immediately knew my name, email, and I now have a Facebook account.
1 project | /r/privacy | 5 Jul 2023
Most emails end up in spam
1 project | /r/Skiff | 30 Jun 2023
Lemmy sign up demands an email address.
2 projects | /r/RedditAlternatives | 25 Jun 2023