#2542 ✓duplicate
Diego Cantalapiedra

Problem signing in to an Office365 account with OAuth2

Reported by Diego Cantalapiedra | May 7th, 2020 @ 08:26 AM


I've got an IMAP account for work, which is an Office 365 account. It works fine; but in a few days, MFA will be enforced. So I clicked on the OAuth2 option in that account settings window, in Mailmate.

Now, when I try to send a new message from that account, an Office365 sign-in window appears; but it says: "That Microsoft account doesn't exist. Enter a different account or get a new one". My Office 365 account is a corporate one, so I maintain my company domain (diego.cantalapiedra@sistemasgenomicos.com). Could that be the reason?

I have no problem signing-in to my account at office365.com, using my corporate email address. And I have configured its one-time password security features, among others.

Thank you.

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