Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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

Why can't I send email messages?

  • 1 reply
  • 2 have this problem
  • 12 views
  • Last reply by Matt

more options

I have set Thunderbird up in accordance to the instructions for email on this site. When sending emails, the email starts to send, freezes and I get a statement that says that:

Sending of message failed. Please verify that your Mail & Newsgroups account settings are correct and try again.

I do not have Newsgroups configured. I receive Incoming mail but cannot send mail. Settings for the incoming and outgoing mail are the same as in Outlook. I have tried ports 465 and 587 but with no success. I use AVG and do not have outgoing mail checked. Port:465 Authentication Method: Normal Password Connection Security: STARTTLS

Please advise.
I have set Thunderbird up in accordance to the instructions for email on this site. When sending emails, the email starts to send, freezes and I get a statement that says that: Sending of message failed. Please verify that your Mail & Newsgroups account settings are correct and try again. I do not have Newsgroups configured. I receive Incoming mail but cannot send mail. Settings for the incoming and outgoing mail are the same as in Outlook. I have tried ports 465 and 587 but with no success. I use AVG and do not have outgoing mail checked. Port:465 Authentication Method: Normal Password Connection Security: STARTTLS Please advise.

All Replies (1)

more options

In order for us to better investigate this issue you need to add a little more non-personal information.

Please add the troubleshooting information to your post To find the Troubleshooting information:

  • Open Help (or click on three-line-icon and select Help)
  • Choose Troubleshooting Information
  • Use the button Copy to clipboard to select all. Do not check box "Include account names"!
  • Paste this in your post.