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Thunderbird Failed To Connect To Server IMAP

Thunderbird failed to connect to server IMAP is the common issue faced by most of the Thunderbird application users. Based on the email service providers, the reason for this issue varies. Try some common troubleshooting instructions given below to resolve the Thunderbird application not connecting to the IMAP server issue.

  • As soon as the Thunderbird is unable to connect to the IMAP server error message is displayed on the screen, check your device network connection.
  • Make sure that your system is getting a stable internet.
  • If you are facing this issue with the Google email service provider, then check the IMAP option is enabled on your Gmail account settings.
  • To check it, sign in to your Gmail account to solve the issue of thunderbird failed to connect to server IMAP.
  • Click the Gear icon or Settings option followed by the Forwarding and POP/IMAP tab.
  • Locate the IMAP section and check if the radio button beside the Enable IMAP option is
    • Keep Gmail’s copy in the inbox
    • Mark Gmail’s copy as read
    • Archive Gmail’s copy
    • Delete Gmail’s copy
  • If not, check it and then try to connect your Gmail account to Thunderbird.
  • If the Thunderbird failed to connect to server IMAP, then check if you have entered the IMAP server settings correctly.
  • If you have entered the wrong IMAP server settings details, then re-configure it and then check if the issue is resolved.
  • Check if you have enabled the 2 step verification option on your Google account.
  • If so, you will be prompted to create an Application-specific password.
  • Create it and then check if the issue is resolved.
  • To get more remote assistance to resolve the Thunderbird failed to connect to server IMAP issue, click the Call button available on this screen.