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
    2018-08-24T13:33:15+00:00

    OK!

    If Outlook does not support POP 3, I will simply uninstall and get a different app.

    Thank you!

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  2. Anonymous
    2018-07-18T00:19:48+00:00

    Hello all,

    I have just purchased a new huawei p smart running Android 8.00.

    Spent some time trying to add my work email Outlook 365 but it returns the following error,

    "Couldn't establish the connection to the server due to untrusted or invalid certificate"

    This is with both Gmail and the built in email app, live.com account works fine with push email and notifications, tried Outlook app which does work in part, or at least it doesn't pop up with the certificate error. 

    I would stick with this but the push functionality is missing along with notifications, you have to tap the app header or scroll down for it to sync, not ideal but it does work - if possible would like to use in-built app.

    I spoke to hand set support along with my carrier, between u we tried just about everything although my carrier mentioned problems with Outlook previously but nothing recent, that said Oreo was only now being pushed out to their user base.

    Thanks

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  3. Anonymous
    2018-04-25T21:23:27+00:00

    I am having same issues trying to re setup talk talk email account after Outlook app on android downloaded from play store stated to repeatedly  ask me to re enter my password and repeatedly failed to connect to email server. Talk Talk account has not changed and I can access it via web no problem.  Started this evening for no apparent reason I can identify.

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  4. Anonymous
    2018-04-25T20:55:44+00:00

    I am having the same issues as well. It just started this afternoon.  We are running Exchange 2007 and any user that is trying to use the Outlook APP gets the ssl error.  I'm instructing all users to switch over to the APPLE mail client until there is a work around.

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  5. Anonymous
    2018-04-25T20:15:31+00:00

    Yes we are running Exchange 2007 as well.

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