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Thunderbird ESR has a message “Server imap.gmail.com has disconnected”.

Alfred Cao
Alfred Cao
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I have 8 email accounts on Thunderbird, 5 Gmail and 3 Outlook. My newly added Gmail account has stopped downloading email, while all the others still work as they should. I keep getting pop-up messages from Thunderbird “Server imap.gmail.com has disconnected”. The problem started yesterday and only 1 of the 8 accounts. This new Gmail account is transferred from one of my Hotmail accounts. I have 7800 emails on the server waiting to come down. Alfred

I have 8 email accounts on Thunderbird, 5 Gmail and 3 Outlook. My newly added Gmail account has stopped downloading email, while all the others still work as they should. I keep getting pop-up messages from Thunderbird “Server imap.gmail.com has disconnected”. The problem started yesterday and only 1 of the 8 accounts. This new Gmail account is transferred from one of my Hotmail accounts. I have 7800 emails on the server waiting to come down. Alfred
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UPDATE I took the following steps on January 5 and 6 to troubleshoot the issue, but it still wasn’t working: 1. Verified that I had internet access since other emails were working. 2. Verified IMAP settings for Gmail (imap.gmail.com), port number (993 for SSL/TLS), and authentication method (OAuth2). 3. Double-checked that Gmail IMAP was enabled in the account settings. 4. Ensured the VPN was disabled. 5. Checked Downdetector (https://downdetector.ca/status/gmail/map/) to confirm there were no reported issues with Gmail. However, on January 7, the email started working again. I’m not sure why or how, but the issue has been resolved, and the email is now back up and running.

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Alfred Cao
Alfred Cao Question owner
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Chosen Solution

UPDATE I took the following steps on January 5 and 6 to troubleshoot the issue, but it still wasn’t working: 1. Verified that I had internet access since other emails were working. 2. Verified IMAP settings for Gmail (imap.gmail.com), port number (993 for SSL/TLS), and authentication method (OAuth2). 3. Double-checked that Gmail IMAP was enabled in the account settings. 4. Ensured the VPN was disabled. 5. Checked Downdetector (https://downdetector.ca/status/gmail/map/) to confirm there were no reported issues with Gmail. However, on January 7, the email started working again. I’m not sure why or how, but the issue has been resolved, and the email is now back up and running.

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Wayne Mery
Wayne Mery
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Thanks for posting your findings.

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