Every step below is from an official source
Switch from Proton Mail to Gmail
What to do at Proton Mail before you leave, what Gmail needs when you join, and everything else the switch touches. Your full plan is built in your browser and stays there.
Official sources reviewed . How we review sources
At Proton Mail, before you leave
Set up forwarding on a paid planBefore
Forwarding needs Proton Mail Plus, Proton Unlimited or another paid Proton Mail plan. In settings, select Forward and auto-reply, then Add forwarding rule. The recipient must confirm before forwarding starts.
How to use email forwardingProton. ReviewedKnow forwarding outside Proton ends end-to-end encryptionDuring
If you forward to a non-Proton address, end-to-end encryption is turned off for all email to and from that forwarding address.
How to use email forwardingProton. ReviewedBack up your mail with the Export ToolBefore
The Proton Mail Export Tool is available to everyone. It saves all your emails and their metadata as EML and JSON files. Large inboxes can take a few hours.
Know your address can't be reused after deletionAfter
After you delete your Proton account, no one can use your username again, including you. A deleted account can't be recovered.
How to delete your Proton AccountProton. Reviewed
At Gmail, when you join
Import mail and contacts in Gmail settingsDuring
On a computer, open Gmail settings, go to the Accounts and import tab and click Import mail and contacts. Follow the steps on screen, then start the import.
Add another email account on your computer - Gmail HelpGoogle. ReviewedCheck what the import brings overBefore
Gmail imports messages but not folders or labels. Your other email account needs POP access.
Add another email account on your computer - Gmail HelpGoogle. ReviewedExpect 30 days of forwarding after importAfter
After you import, Gmail forwards messages sent to your other account for 30 days.
Add another email account on your computer - Gmail HelpGoogle. ReviewedPlan for the end of POP mail fetchingBefore
Gmail is ending POP fetching from other accounts. Existing users can use it until January 2027. Importing mail and contacts on the web still works, but it is a one-time import that does not keep syncing.
Then: everything else the switch affects
The steps above are what Proton Mail and Gmail say. Your full checklist adds the accounts, codes, payments and devices that depend on your email provider, in a safe order. It's built from your answers, in your browser.