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
    2020-11-05T10:54:05+00:00

    Some of our users are having this too on their iPhones with their Office365 / Exchange Online accounts. As i'd rather not reconfigure 100 email accounts on 100 iPhones i do think there must be some explanation from Microsoft and/or Apple about this...

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  2. Anonymous
    2020-11-03T19:21:48+00:00

    This seems to have fixed it for me. Just speculating, but I think it is related to the change from Office 365 and what they may have done to the certificates when they renewed. I have a main mailbox and four shared mailboxes on the app formerly known as "Office 365" and I only had to change my main account to solve the problem.

    PS: Thank you, Jeff Willette!

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  3. Anonymous
    2020-11-02T09:50:11+00:00

    I’m sure it will clear up after the election.

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  4. Anonymous
    2020-11-01T17:01:00+00:00

    this worked.  thanks.

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  5. Anonymous
    2020-07-28T11:24:57+00:00

    I am having the same issue.  A co-worker of mine is getting that message on their iPhone.  On a Laptop, I used Edge to navigate to outlook.office365.com and the page will not load.  The Security icon for the site (looks like a padlock when secure in the box to the left of the url address textbox) keeps on alternating between the globe icon and this padlock.  The page will not load eventually.  I tried the same thing with outlook.office.com.  When I cancel the load after a few minutes, I get a page can not be loaded message on the browser with the following details:

    cId: 509D2AC2D92B47EF95188EEBE4863DD2

    app: Mail

    st: 401

    reqid: null

    wsver: null

    efe: DM5PR07CA0161, BL0PR02CA0059

    ebe: DM6PR02MB4826

    et: ServerError

    esrc: UserBootSettings

    err: Error: 401

    estack: Error: 401

       at Anonymous function (https://outlook.office.com/mail/login.html:343:33204)

       at Anonymous function (https://outlook.office.com/mail/login.html:350:29828)

       at r (https://outlook.office.com/mail/login.html:350:32981)

    ts: 2020-07-28 11:24:09Z

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