This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

After downloading an upgrade to thunderbird I can't connect to my email server

  • 3 cavab
  • 15 have this problem
  • 1 view
  • Last reply by Matt

more options

message reads: could not connect to mail server xxx@unicornglass.com the connection was refused

message reads: could not connect to mail server xxx@unicornglass.com the connection was refused

Modified by James

All Replies (3)

more options

If you have the urge to say suddenly my mail stopped downloading / working. It is more than likely not an issue with your mail client. Sometimes it is the mail provider changing connection settings so these need to be confirmed. Other times if it is following an update to Thunderbird, then it is more than likely the firewall component in your internet security suite / anti virus.

I suggest you look at the anti virus/firewall aspect.

more options

Thanks for that but I turned the firewall off and it made no difference. I have since reset Thunderbird to it's previous state and emails flow again. Think I'll abandon all attempts to update

more options

When you get a virus or other security problem because of unpatched software, just remember it was your choice.