Addy.io Free, Open-source Self-Hostable Anonymous Email Forwarding is owned by a UK developer

Excellent service, highly recommend! I pay for the "Lite" plan which is dirt cheap and allows me to create aliases under my own domain. So my accounts all have unique email addresses and I know when a company sells my contact info because I start receiving unsolicited spam to that alias. I use aliases for temporary needs too, like RSVPing to events, and I deactivate them afterward if I never want to hear from the organizers again.

Seems good... no note though the UK is not the bastion of openness it should be and I dont tust their tech companies either.

I've been a paid user for 2 years. I can highly recommend.

You can also link this to Bitwarden and generate aliases direct in the browser plugin. It has a tendency to forget the API keys though.

I'm self hosting this, pretty useful and working good, I generally forget about it

This is great!

I’ve been manually doing this since I had my first domain name. For years, I used the catch-all and just put entity@example.com for each entry I interacted with. I’ve shut off dozens of aliases over the years. I can tell when their email list database was leaked/sold because the spam instantly jumps for that alias.

My hosting provider shut off the catch-all years ago (still grumpy about that), so for some domains, I manually manage forwarders. I looked a bit into running my own mail server, but that’s for masochists. I was recommended https://mxroute.com/ that offers cPanel management of aliases and has a catch-all feature. I got their 10-year plan for pretty cheap. It’s a US company though.

I’m tempted to migrate. Maybe even self-host.