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.

Avatar for Username

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

Lolu chungechunge lwabekwa kunqolobane. Uyacelwa ubuze umbuzo omusha uma udinga usizo.

Receive but can't send emails.

  • 3 uphendule
  • 0 zinale nkinga
  • 1 view
  • Igcine ukuphendulwa ngu kauffman93

Tim C
Tim C
more options

About 2 weeks ago, Thunderbird stopped sending emails. I spent a couple of hours on the phone with tech support but was unable to correct the issue. Changed all of the settings several times, SMTP server, port, security and authentication without success. Tech support suggested using their server but that's a pain. Attached are pictures of the error messages. Thanks.


Tim

About 2 weeks ago, Thunderbird stopped sending emails. I spent a couple of hours on the phone with tech support but was unable to correct the issue. Changed all of the settings several times, SMTP server, port, security and authentication without success. Tech support suggested using their server but that's a pain. Attached are pictures of the error messages. Thanks. Tim
Ama-screenshot ananyekiwe

All Replies (3)

christ1
christ1
  • Top 25 Contributor
more options

https://support.mozilla.org/kb/cannot-send-messages

There is no point trying arbitrary combinations of server settings. Use the exact settings as required by your email provider. Presumably they do have a support web site with that information.

Tim C
Tim C Umnikazi wombuzo
more options

I spent over 2 hours on the phone with my internet provider. The best answer they could give me was to not use Thunderbird as my email client.

kauffman93
kauffman93
more options

After an exhaustive search of gpcom.com, I was unable to find anything related to devices, IMAP, or POP (among about two dozen other search attempts). If the information is present on their website, it is extremely well hidden.

In the websites and emails that I host, whenever I create a new account, I ensure that the user is sent (as their first message) instructions for how to access the account via third party software. You may wish to check back to your oldest messages or do a search from IMAP and SMTP to see if they sent an email about changing their requirements.

Searching with duckduckgo, I found https://guides.myonlinehelp.net/docs/gpcom.net, which has a specific page for updating Thunderbird settings: https://guides.myonlinehelp.net/docs/gpcom.net/thunderbird. It appears that these pages were last updated sometime last year. Aside from the heavy usage of the Great Plains Communications Logo, these pages do not appear to be affiliated with your provider. However, if you assume that information is correct, their main page indicates that they are migrating to PORT 587 for SMTP. Despite what Thunderbird states, that is the "official" port people should be using for TLS support. (See, e.g., https://www.cloudflare.com/learning/email-security/smtp-port-25-587/.) If they made that switch mandatory, that could be preventing you from sending emails. It would also be an on/off switch that would only affect you sending emails.

Good luck.