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Outlook.com account will not connect

  • 2 replies
  • 4 have this problem
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  • Last reply by jibjabjibby

I have recently started using Thunderbird 52.0.1. I use Thunderbird for two accounts, both Outlook, one through my school's 365 and one just outlook.com. The school account works well, the outlook.com account does not. I repeatedly get error messages as indicated in the attached screenshot.

Things I have tried: creating exclusions for my profiles (no effect); starting in Thunderbird safe mode (no change); using with or without my VPN (expressvpn) on (no change); repairing inbox.msf file (no improvement); compacting folder (no effect); changing the size of the cache (no effect); decreasing the size of INBOX file that is kept locally (no change); re-entering my password as I am sometimes prompted to do (no change); changing how often mail is checked, anywhere from 1 minute to ten minutes (no effect).

I am running outlook imap (imap-mail.outlook.com; port 993; SSL/TLS; normal password).

It does occasionally work, but for seemingly no reason. I'm not a computer person so I don't doubt that I'm missing something, I'm just trying my best.

I have recently started using Thunderbird 52.0.1. I use Thunderbird for two accounts, both Outlook, one through my school's 365 and one just outlook.com. The school account works well, the outlook.com account does not. I repeatedly get error messages as indicated in the attached screenshot. Things I have tried: creating exclusions for my profiles (no effect); starting in Thunderbird safe mode (no change); using with or without my VPN (expressvpn) on (no change); repairing inbox.msf file (no improvement); compacting folder (no effect); changing the size of the cache (no effect); decreasing the size of INBOX file that is kept locally (no change); re-entering my password as I am sometimes prompted to do (no change); changing how often mail is checked, anywhere from 1 minute to ten minutes (no effect). I am running outlook imap (imap-mail.outlook.com; port 993; SSL/TLS; normal password). It does occasionally work, but for seemingly no reason. I'm not a computer person so I don't doubt that I'm missing something, I'm just trying my best.

All Replies (2)

The screenshots I intended to post are here.

Thanks for the help sfhowes.

I changed the imap server to "outlook.office365.com" and this updated messages, started things downloading, and received a new test email immediately.

Wish I was better at navigating these forums on my own.