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Imap server problems SOLVED caused by ESET

celentano.jc
celentano.jc
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Of the 3 accounts I have configured in Thunderbird, only the POP account is still functioning. The other 2 are IMAP accounts and are not working. One of these, a Hotmail account, has "Connected to imap-mail.outlook.com..." in the status bar, yet no messages are retrieved from the server (yes, there are unread messages there). Further, after trying to fix it by using the "Repair Folder" utility for the Inbox, it is still not working and the Inbox is now empty and the corresponding local folder is missing. The other IMAP account shows "Checking mail server capabilities..." in the status bar and never changes nor retrieves existing unread mail on the server. An upgrade to version 78.5.0 did not resolve the problem. No other updates have been applied to the OS, (Windows 10) or any other applications.

Any recommendations would be appreciated.

Of the 3 accounts I have configured in Thunderbird, only the POP account is still functioning. The other 2 are IMAP accounts and are not working. One of these, a Hotmail account, has "Connected to imap-mail.outlook.com..." in the status bar, yet no messages are retrieved from the server (yes, there are unread messages there). Further, after trying to fix it by using the "Repair Folder" utility for the Inbox, it is still not working and the Inbox is now empty and the corresponding local folder is missing. The other IMAP account shows "Checking mail server capabilities..." in the status bar and never changes nor retrieves existing unread mail on the server. An upgrade to version 78.5.0 did not resolve the problem. No other updates have been applied to the OS, (Windows 10) or any other applications. Any recommendations would be appreciated.

Modified by Wayne Mery

Chosen solution

If you are using ESET/NOD32 security/AV then probability is very high it is causing your problems. According to their forums, you should temporarily disable SSL until they solve the problem per https://support.eset.com/en/kb3126-disable-ssl-filtering-in-eset-windows-products?ref=esf - the problem is being reported by dozens of users https://forum.eset.com/topic/26517-problems-with-thunderbird-and-imaps/ https://forum.eset.com/discover/

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All Replies (3)

Stans
Stans
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Which antivirus program are you using?

Wayne Mery
Wayne Mery
  • Moderator
  • Top 10 Contributor
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Chosen Solution

If you are using ESET/NOD32 security/AV then probability is very high it is causing your problems. According to their forums, you should temporarily disable SSL until they solve the problem per https://support.eset.com/en/kb3126-disable-ssl-filtering-in-eset-windows-products?ref=esf - the problem is being reported by dozens of users https://forum.eset.com/topic/26517-problems-with-thunderbird-and-imaps/ https://forum.eset.com/discover/

celentano.jc
celentano.jc Question owner
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THANK YOU Wayne! I had tried pausing the Eset protection, but apparently that was not sufficient. John