Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More
Open

Thunderbird will not connect with my server

brecca

Thunderbird had been working great until a couple of days ago when it failed to download emails from my server

Thunderbird had been working great until a couple of days ago when it failed to download emails from my server

All Replies (4)

Thunderbird will not connect to my email server

If the issue is a timeout, try this. It may work. Let me know. It's the only solution I'm aware of:

  1. click to settings>general
  2. scroll to the bottom and, on the right, is 'config editor'. click that
  3. enter this: mailnews.tcptimeout
  4. I think you will see the default setting is 100. Change to 250 save and exit
  5. restart thunderbird and let me know. Also, recheck config editor to be sure your change took.

Thanks, but that did not work, David. I am able to access emails from my server using webmail, but for some reason Thunderbird is not working. I deleted the app and downloaded a new one but still nothing. Very frustrating

Who is your mail provider?

Ask a question

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.