- IMAP server
- outlook.office365.com
- Port
- 993 · SSL/TLS
- Username
- full address
- Password
- app password
Outlook.com → Gmail
Migrate email from Outlook to Gmail
Migrating Outlook to Gmail is the easier direction: Microsoft has no labels, so nothing duplicates. Two things still need attention — an app password when 2-step verification is on, and the different names Microsoft and Google use for junk mail.
- IMAP server
- imap.gmail.com
- Port
- 993 · SSL/TLS
- Username
- full address
- Password
- app password
What breaks on this particular pair
- Microsoft calls it Junk, Gmail calls it [Gmail]/Spam. Without folder mapping you end up with a stray extra folder.
- With two-step verification enabled you need an app password from Microsoft account security settings.
- Gmail storage is shared with Google Drive and Photos. Check free space before moving 15 GB or the run stops with quota exceeded.
- Legacy Hotmail and Live mailboxes sometimes need one web sign-in before IMAP starts responding.
FAQ
Common questions
Do Outlook folders become Gmail labels?
Yes — Gmail presents IMAP folders as labels, and nesting is preserved. It looks like an ordinary folder tree in the interface.
Will Gmail have enough space?
Gmail storage is shared with Drive and Photos. Confirm free space before a large move, otherwise the transfer halts with a quota error partway through.
Related routes
Other directions
Find out how big your mailbox is. It costs nothing.
Connect two servers, look at the size and decide. Or take the client and keep everything on your side.
Code on GitHub · built on imapsync · no sign-up