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

Cannot send or receive from gmail account in Thunderbird

  • 2 replies
  • 1 has this problem
  • 23 views
  • Last reply by zpagosa

more options

Hello - I have a gmail account configured through Thunderbird that I've been using for ten years without any issue. Two days ago I was no longer able to send or received email with error message for receiving mail that stated "could not connect to server pop.gmail.com; connection refused. For sending mail the message stated "The message could not be sent because connecting to Outgoing server (SMTP) smtp.gmail.com failed". I checked this gmail account through google web based interface and it works fine. Any help is appreciated.

Hello - I have a gmail account configured through Thunderbird that I've been using for ten years without any issue. Two days ago I was no longer able to send or received email with error message for receiving mail that stated "could not connect to server pop.gmail.com; connection refused. For sending mail the message stated "The message could not be sent because connecting to Outgoing server (SMTP) smtp.gmail.com failed". I checked this gmail account through google web based interface and it works fine. Any help is appreciated.

All Replies (2)

more options

You might want to double-check the settings that you have (incoming and outgoing) to be the same as mentioned on google page (server, port, ssl/tsl). If all are fine, test by changing one (1) of the options and after that restart Thunderbird. When it start see if the changes made by you previous are still as were last saved by you (or if it have returned to the value which was before your change - suspecting some corruption files)

Later Edit: If you're using port 587, the security should be STARTTLS. SSL/TLS works on port 465. The recommended authentication is OAuth2, together with allowing 'less-secure apps'. If you applied 2-step verification, the authentication has to be either OAuth2 or with an app password.

Modified by svlad2009

more options

Thanks for reply...I tried your recommendations but had the same results. When I tested gmail through the web based interface I was foreced to use two step verification through the gmail app on my phone. Based on what you said about OAuth2 and 2-step verification it looks like I might have to switch over to IMAP from POP....