I've been using protonmail since beta. It is my primary email address ever since. Honestly have never had any issues with it. I also use proton calendar as my main calendar. Which also works great. I've only used proton drive a handful of times but it worked just like it should every time. I used to use protonvpn but i switched to mullvad because its cheaper. When i did use it it was great too. Never any issues.

Zero issues with it, been using it for maybe 5 years.

Rock-solid and largely issue free for me for many years. I remember once having a site not accepting usernames from the “@protonmail.com” but the “@proton.me” worked w/o issue. Not bad for my most memorable issue in like 5 years.

I have somewhere on the order of 80 accounts on as many websites registered to Protonmail accounts, and I've never once had a website turn me away for the @protonmail.com domain. I exclusively use that domain. I can only remember one specific instance where they had downtime, too - overall they've been very reliable.

I did once have some of my protonmail accounts closed for suspicious activity, multiple years ago - but in their defense I was being pretty suspicious. I emailed support from my main account, explained the situation, and they unlocked the accounts for me - never had an issue since.

I'm since beta if im not wrong, never had a problem with proton, everything worked smooth and fine. There was on time where mail went down, but it was only 1-2 hours. I want to mention that I use the free version!

I never have problems with ProtonMail. It's the only service that feels thoroughly fleshed out, and the features are way better than GMail.

I use it since 2016, but with my own domain, so can't really speak for the "@ proton" domains
But I never had trouble accessing it in a foreign country, it worked flawless

Some websites don't accept the '+' character you can use in the first part of your address (username+whatever@proton.me). But most of them do

many years, several domains.. lots of DNS nonsense. i have never had a single issue. proton is kinda awesome..

Been using it for a bit over a year now. I've basically phased out all Google products, and I don't plan to go back. That said, I wish they would focus more on polishing the user experience than making new apps. The android and Linux experience are very poor right now, though they keep claiming they will get better soon.

Development is slow because of how much testing/refining they do. I've never not got an email or been unable to access it, even while traveling in the US & Canada. If your looking at the free tier the biggest issue at least for me would be the 500MB (1GB after steps taken).

I also have probably 30 email filters setup for absolute automation to set folders and tags to keep it all organized -- Super easy to setup compared to other email services.

2 year Proton user here, The only real issues I've encountered are the occasional short downtimes (they really aren't often). If you're ever worried about their status, they do have a status page here. I haven't ever had any trouble with people not receiving emails from me, and I don't travel as of right now. Anyways, I'd give their free plan a try and go from there, just to see what you think, but I think it's a fantastic option.

I feel the spam filter is as strong as Google. Receive a lot of spam, even though I didn't put my email on a random website, but the spam is not blocked.

Never had an issue. It's been rock solid.

been using it for years and paying. Just went all in on the pro plan to get the VPN. No issues. Maybe the iOS app can be bit slow to refresh but..

I've been using PM for a couple of years and have been enjoying it without issue. No problems with delivery, but can't say anything about access abroad. The service has never gone down as far as I've noticed.

I had issues using it with something before. I think it may have been with Patreon?