[coxomb]

Fastmail, primarily for their 'masked e-mail' feature for signups where I don't want to hand out my main e-mail. I recently cancelled a sub to Tuta because their pricing increased and I would much prefer their old $12/year instead of $36/year. I might consider going with Tuta again though.

[flpm]

+1 Also Fastmail, have used it for a few years now, you can add multiple domains and have all email end up into the same inbox with catch all addresses. When you reply you can pick which domain the response comes from.

[biglyburrito]

+1 for Fastmail. I just switched over a few weeks ago, after my previous host announced it would be increasing the price of my hosted Exchange plan. They have a solid web client (to replace Outlook Web Access), & I use EM Client for desktop & mobile (iOS client is in beta but still perfect for my needs).

https://www.fastmail.com https://www.emclient.com

[helph67]

+1 for Fastmail, have been using them for many years and recommend them. Using aliases helps deal with (input) business emails, each assigned to specific Inbox.

[atmosx]

I'd like to see Fastmail calendar support for appointment schedules. They have "calendar partners"[^1] that support this feature but I not keen on using a third party service just yet...

[^1]: https://www.fastmail.com/blog/fastmail-calendar-updates/

[billybuckwheat]

Been a happy Fastmail customer for a number of years now. Several reasons for that, but mainly the service (aside from a couple of hiccups a while back) has been very reliable. And, as the commenter above pointed out, the masked email feature is great. Also like the calendar.

Don't use the file storage or notes features very often, though. But they're quick and easy to use when I need them.