While on dread recently I stumbled across this old post regarding issues with their onion adresses https://encryp.ch/blog/disturbing-facts-about-protonmail/

When a user makes a new account with Protonmail on TOR they are re-directed from Protonmail’s “.onion” to “.com” address. This breaks your secure encrypted connection to their onion address, enabling your identification. There are absolutely no technical reasons for this feature. In fact, the only other websites that operate like this are suspected NSA/CIA Honeypots.

A lot of push against Proton on here lately. Makes me suspicious.

Is it that maybe someone on your exit node is trying to enumerate valid accounts?

Have you actually asked proton support about this issue, if so what have they said?

It seems like you got frustrated and instead of trying to get help you decided to complain on lemmy.

What makes you think this has anything to do with Tor?

I previously commented I would write the support, now I actually read the docs first and found out why:

If you want to create an account over tor you can, just not via the clearnet URL, probably due to rate limiting by IP adress. However if you use their Onion Link as specified in this article by their support (https://proton.me/support/tor-setup) it works just fine (as far as I just tested). So great! Because using .onion services is far more secure than accessing clearnet over Tor anyway.

Here the url, verify it with the link in the support article tho: https://protonmailrmez3lotccipshtkleegetolb73fuirgj7r4o4vfu7ozyd.onion/

Just tested it, same here. Clearnet works but tor not. I will contact support since part of the reason I like to pay for unlimited is to subsidize free, anonymous accounts.

Edit: here is my other comment:

I previously commented I would write the support, now I actually read the docs first and found out why:

If you want to create an account over tor you can, just not via the clearnet URL, probably due to rate limiting by IP adress. However if you use their Onion Link as specified in this article by their support (https://proton.me/support/tor-setup) it works just fine (as far as I just tested). So great! Because using .onion services is far more secure than accessing clearnet over Tor anyway.

Here the url, verify it with the link in the support article tho: https://protonmailrmez3lotccipshtkleegetolb73fuirgj7r4o4vfu7ozyd.onion/

Does anybody know valid alternatives to proton mail, I think they have been enshitified

A while back I tried to create an account with vpn and got notice that said something about how I couldn’t use it to validate other accounts without validating that account because other companies had threatened to label them as untrustworthy or spam.

Proton always felt like a scam to me. Their claims on privacy and security are questionable at best.