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

This thread was archived. Please ask a new question if you need help.

115.3.1 Will Not Allow Me To Send Emails

  • 1 பதிலளி
  • 1 இந்த பிரச்சனை உள்ளது
  • 4 views
  • Last reply by Mark Lang

tmorris11
tmorris11
more options

10/17/2023 I just upgraded my Thunderbird to the new version 115.3.1 and it will no longer allow me to send emails. I have verified through my provider that my settings were correct and my passwords are correct. This is one of the messages I get when trying to send email.

Sending of the message failed. The message could not be sent because connecting to Outgoing server (SMTP) webmail.spectrum.net failed. The server may be unavailable or is refusing SMTP connections. Please verify that your Outgoing server (SMTP) settings are correct and try again.

My settings are correct and verified.

The other error message I get is: Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) mail.twc.com timed out. Try again.

Anyone know what is going on?

10/17/2023 I just upgraded my Thunderbird to the new version 115.3.1 and it will no longer allow me to send emails. I have verified through my provider that my settings were correct and my passwords are correct. This is one of the messages I get when trying to send email. Sending of the message failed. The message could not be sent because connecting to Outgoing server (SMTP) webmail.spectrum.net failed. The server may be unavailable or is refusing SMTP connections. Please verify that your Outgoing server (SMTP) settings are correct and try again. My settings are correct and verified. The other error message I get is: Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) mail.twc.com timed out. Try again. Anyone know what is going on?

All Replies (1)

Mark Lang
Mark Lang
more options

This does sound like your server settings have somehow been corrupted. The two messages you mention cite two different SMTP servers from two different providers. If you only have one provider, then something is definitely wrong. I would go into Account Settings and check. Since you are getting emails, your download server settings must be OK. At the bottom of the first page of each email in the account settings is where you select what outgoing server you use. Make sure that is set correctly for each email account. Then check in the Outgoing Server settings at the bottom to make sure the outgoing server you are using has the correct server name, account, and password and the type of security. Your provided should provide those for you. The settings for the outgoing server may be different that for the download server.