Comment by nsagent

I moved because I found the Proton service to be poor. That includes reaching out to support for issues with my email and not really getting a good resolution.

What's worse is that I ported all my emails over to Proton, which meant my data usage was above the free tier, so I was essentially hostage to keep paying (even though my actual usage is on Proton is much below the free tier). While they do label the emails you import, it's useless because it gets intermingled if they are part of the same thread (for example, all my bills that switched over were tagged as imported even when I got a new bill; this was an issue for even direct email threads with other people). Furthermore, it's nearly impossible to bulk delete anything, you have to use their web interface (which is very limiting). If you try to delete using something like Thunderbird, the emails stay in All Mail, so it's not really deleted (thus keeps using your disk space, preventing you from moving to the free tier). It took me nearly a week to devise a way to properly delete the imported emails without accidentally deleting real emails. Using the web interface is SLOW. It was painful doing the deletes that way because Proton struggled to keep up with the deletes, it was glitching like crazy.

Needless to say, that was a shitty shitty experience, and I'm positive that's part of their approach to lock users into their platform.