To make the transition easier you can configure Gmail to automatically forward mails you your FastMail address. They all then appear in the fastmail acc and you don't have to touch Gmail ever again.
I also added a rule in Fastmail to automatically label things forwarded from Gmail. This became an easy map of what to update. In about 6 months almost nothing still comes to gmail.
Does Fastmail offer an option to set this up for you using the Gmail REST API after an import from Gmail into your Fastmail account? If not, please do so Fastmail folks if you read this!
Thats exactly what I do - get a bit tiring to manage emails on both side during the intermediate phase (which I'm still in) but I have already migrated most of my financial and government contacts to fastmail.
I migrated the important stuff and then just incrementally moved things over whenever I happened to login somewhere. At this point, the only emails I get on Gmail are random crap I don't care about.
It's so nice to have my Gmail only for Android and other Google services. It was a big relief.
yep, I have 2 gmail accounts that have been forwarding to fastmail for something like 10 years now. I'm really unsure on the timeline, but it's been a very long time.
google is good at spam filtering so those accounts became the accounts I give out to people publicly.
