#2944 ✓fixcommitted
Michael Morris

Office 365 can't send

Reported by Michael Morris | November 5th, 2021 @ 06:34 PM

I have created an app-specific password, and entered it on request. Still can't send. As I understand it, Microsoft has basically killed IMAP access:


Any thoughts or additional information requested?


Comments and changes to this ticket

  • benny

    benny November 8th, 2021 @ 12:25 PM

    • State changed from “new” to “fixcommitted”

    You need a test release of MailMate for OAuth2 to work (which is needed for Office365 now): Hold down the option key when clicking “Check Now” in the Software Update preferences pane.

    Let me know if that does not help.

  • Michael Morris

    Michael Morris November 10th, 2021 @ 07:18 PM

    Uploaded test release. It does get me further along the process. Specifically, it gets me to an authorization website where I have to login with my Microsoft account information, at which point it informs me that no such account exists. This may be because the account in question is a corporate account.

    The activity viewer is as follows:

    19:16:31 Handling request
    19:16:31 C: QUIT
    19:16:31 S: 221 2.0.0 Service closing transmission channel
    19:16:31 Clearing connection to smtp-mail.outlook.com
    19:16:31 Ready to run action (type: 3, retry count: 0)
    19:16:31 Clearing connection to smtp-mail.outlook.com
    19:16:31 Completed action (3). Observed read/write timeouts: 8/8

    19:16:31 Handling reply

  • benny

    benny November 14th, 2021 @ 11:10 AM

    The “no such account” issue is not related to MailMate.

    If it's a corporate account then I would expect it to work with Office365 servers and their settings.

    If it's really imap/smtp-mail.outlook.com then I'm still working on making this work again. It's a different OAuth2 process and it's not quite clear how it's supposed to work (it did work in earlier releases, but something changed at Microsoft I believe.

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