We had successfully setup OAuth for IMAP email fetch last week, suddenly today emails are not being fetched and when going into the IMAP fetch to enable/disable we get this error. NOTHING has changed firewall, network, or server wise on our end. Anyone have any ideas?

cannot connect to host ; error = fsockopen(): Unable to connect to ssl://outlook.office365.com:993 (Unknown error) (errno = 0 )

    geseronta

    Sounds like you’re blocked or a firewall or port is blocked or certificate issues, etc. you’d have to check all your logs for any related errors.

    Cheers.

      Honestly it just started working again.. very odd! Maybe a transient MS issue that was affected our tenant but nothing else flagged or blipped! Oh well

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