Cannot Verify Server Identity. The identity of @outlook.office365.com@ cannot be verified.

Anonymous
2020-05-26T15:26:48+00:00

I have this message appearing on my iPad every 20 seconds or so.  I use an Office365 exchange account to sync email, contacts and calendar onto the iPad and also use Onedrive for storage along with Word, Excel, Powerpoint etc.

I have had periods of tim when this error message appears, but usually only for 24 hours max.  If it is for a prolonged period, I found that deleting the Exchange account from the iPad and setting it up again often cured the problem.

This time it has been going on for weeks, with no let-up.  I have deleted and set the account up again twice, to no avail.  Please help it's driving me bonkers.

Microsoft 365 and Office | Subscription, account, billing | For business | Other

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  1. Anonymous
    2020-10-31T18:25:09+00:00

    My wife is also seeing this on her iphone and ipad.  Any suggestions Microsoft?

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  2. Anonymous
    2020-10-31T18:12:05+00:00

    This has been happening on my iPhone for the past several days, too.  My email is actually working, but this error message keeps popping up. When I click on the DETAILS buttons I see the certificate for outlook.com Issued by DigiCert Cloud Services CA-1 is "Not Trusted" "Expires 10/7/21 6:00am". Under "More Details" the validity period is 10/6/2020 6pm through 10/7/2021 6am.  Lots more information there...someone please tell me what bits are needed.

    This is exactly what I am getting.  Definitely system wide on the Microsoft side.

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  3. Anonymous
    2020-10-31T18:10:28+00:00

    This has been happening on my iPhone for the past several days, too.  My email is actually working, but this error message keeps popping up. When I click on the DETAILS buttons I see the certificate for outlook.com Issued by DigiCert Cloud Services CA-1 is "Not Trusted" "Expires 10/7/21 6:00am". Under "More Details" the validity period is 10/6/2020 6pm through 10/7/2021 6am.  Lots more information there...someone please tell me what bits are needed.

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    6 people found this answer helpful.
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  4. Anonymous
    2020-10-31T17:34:55+00:00

    Agreed, just started seeing this issue on my iPhone this past week and no settings were adjusted. I deleted my email account, now i cant get it to pull email down.

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  5. Anonymous
    2020-10-31T16:47:56+00:00

    I’m having the exact same issue on my Mac, iPhone 11 Max, and iPad Pro. It’s getting worse and popping up more and more often (several times in a row now). I use Apple’s mail app. Please find a solution, it’s something you changed recently. 

    “ Cannot verify the server outlook.office365.com”

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    4 people found this answer helpful.
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