glukkanta

Those definitely sound like pain points at scale, but like you said, probably not an issue with our size. Do you know if the company ended up migrating to another platform?

Thanks for the info! Are you still using Fastmail or have you moved to another service?

Oof, good to know. So it was a calendar issue? Did you ever contact Fastmail support about it?

We are an Apple devices outfit, and 3/5 employees use Apple's native clients for 99% of our emailing... but having a lightning-fast, modern web client with all of the features being discussed in this thread and others will be great for the 2 employees that prefer the browser and for the unique cases when we all need to log in on public devices.

From the research I've done, Fastmail seems to be the only non-Exchange, non-iCloud option to get push notifications in Apple's mail clients, which is a huge plus.

Thanks, troyvit! Very reassuring to hear that a company with that many users has found success with Fastmail. I'll keep those quirks you mentioned in mind should we decide to move forward, but they are definitely not deal breakers.

Yeah, based on the other responses, sounds like your case is an outlier... Were you using a custom domain, and do you know if your SPF, DKIM, DMARC were set up correctly?