"User is authenticated but not connected" using Thunderbird - Microsoft Community


for 2 days i've been getting strange authentication errors when try connect hotmail account using thunderbird. can connect , authenticate using outlook website account using same account , password.

my account details haven't changed , haven't changed configuration options in thunderbird has been working flawlessly several years previously. can't view of mail folders through thunderbird. whenever thunderbird tries connect get:

the current operation on 'inbox' did not succeed. mail server account [account name] responded: user authenticated not connected.

followed by:

server [account name] has disconnected. server may have gone down or there may network problem.

according office 365 service status site there problem sending , receiving mail in europe, not in europe , can;t connect mail inn order send mail.

i reset cached password in thunderbird , received message (in backup email) saying unusual account activity , asking verify account. (so server is certainly receiving authentication request.

i have tried removing account in thunderbird , when add back, fails same messages each time.

how can regain access hotmail account thunderbird?

edit: update sep 28

yesterday (sep 27) noticed thunderbird displays imap folders. first time since re-created hotmail account in thunderbird i've seen inbox folder, progress.

today (sep 28 2017) have full access account again thunderbird.

since haven't changed on side, microsoft working on related issues. else regains access once again.

test account , customers appear working well.  something got fixed...


Outlook.com / Email / Connecting to Outlook.com with apps and devices



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