Your mail server certificate is invalid error

Anonymous
2018-03-03T15:59:06+00:00

I am attempting to use Outlook on my android phone.  When I attempt to add my email account to outlook (on my phone) I get an error that says:  Your mail certificate is invalid.  Would you like to login anyway.   PLEASE HELP!!!!

Outlook | Outlook for mobile | Outlook for Android | For business

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  1. Anonymous
    2018-04-26T02:06:21+00:00

    Same issue here this morning. 

    Exchange 2007 with the Mobile Outlook app on both Android and iPhone.

    All users reporting the messages as per other recent posts.

    OWA working. Certificates all look fine.

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  2. Anonymous
    2018-04-26T07:36:45+00:00

    Facing the same problem from this morning.

    just log in my exchanger mail from Gmail and its fine 

    everyone should try

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  3. Anonymous
    2018-04-26T08:29:51+00:00

    Same problem here.

    All android devices since yesterday keeps showing certificate error popup without any system change and with a valid certificate.

    I also added my own CA to CA store in the android device without any luck.

    With Exchange 2007 too.

    No workarround yet.

    Thanks.

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  4. Anonymous
    2018-04-26T11:21:01+00:00

    This seems to be spreading...

    Looks like Outlook client tries verifying the SSL intermediate authority with some Microsoft servers, rather than doing this locally or on Exchange server. All Android and iPhone Outlook clients are currently broken on our Exchange 2010 server.

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  5. Anonymous
    2018-04-26T11:30:06+00:00

    If it's spreading with a lots of users affected, I hope that we can expect a resolution from Microsoft, in despite that Exchange 2007 is obsolete.

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