Outlook 2016 doesn't accept password or app password

Anonymous
2024-01-25T09:40:42+00:00

I have this problem - Outlook 2016 doesn't accept password or app password - and i think it is a growing World wide Microsoft problem :-(

See also here: https://www.reddit.com/r/Outlook/comments/19dx64p/outlook_2013_windows_10_suddenly_not_accepting/Outlook gives me this: (startede yesterday)

I have 2 PC's with HOTMAIL accounts in Outlook 2016 ...

They both have this error.

I do get mails ... but I can´t send mails. Yesterday it did work for 1-2 hours ... but right now the error is there all the time :-(

Please help me.

Thanks in advance

Pierre

Outlook | Windows | Classic Outlook for Windows | For business

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  1. Anonymous
    2024-01-30T10:46:18+00:00

    Same issue here with outlook.de-Account. IMAP-Login (Thunderbird on Win11, K9 on Android - all up to date) doesn't work the first, but works when tried repeatedly. Annoying these repeated error-notifications...

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  3. Anonymous
    2024-01-30T07:19:17+00:00

    T-Mobile uses IPv6 which is a whole other set of IPs, though when I switched to mobile data (I have Tmo also) it worked just now.

    If I do go back to the "credentials needed" tomorrow I'm going to try one of the IPs I have as working along with the accept any certificate just to see if it works. My phone isn't rooted so I can't edit the hosts file (that's really something that should be in developer options).

    I can also add a DNS host entry to my router but that will only work at home on wifi.

    I'm curious what workaround 9Folders did and if it was potentially something like this.

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  4. Anonymous
    2024-01-30T07:15:33+00:00

    That step didn't work for me anyway. I suspect that person just got lucky timing wise and it was coincidence.

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  5. Anonymous
    2024-01-30T07:08:06+00:00
    1. Here seems to be the important part - go to your impacted email account online via Outlook Web. Go to Settings then search for "mobile", it should take you to a setting page and your logged in Mobile devices are listed.

    I have no "mobile" option in my Outlook.com settings.

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