Unable to send email

Hello there Reefside

smtp Yes, your SMTP settings are fine, but there is a port and encryption mismatch.If you use Port 587: Set the encryption to STARTTLS.If you use Port 465: Set the encryption to SSL/TLS.Change your settings to STARTTLS on Port 587, and the program should work perfectly."

Question Are your passwords and other settings working correctly?

Did you change these or other settings when transferring to Spectrum?

Read https://support.mozilla.org/en-US/questions/1585249#answer-1823593 https://support.mozilla.org/en-US/kb/cannot-send-messages

Modern spectrum Settings Server Name: mobile.charter.net

Port: 587

Connection Security: STARTTLS (Change this from SSL/TLS)

Authentication Method: Normal password

Username: Reefside@cfl.rr.com

Hello there

Antivirus If things are not working properly after trying the steps described above, you might want to check a few more things. Sometimes, heavy antivirus software or firewall settings block port 587 or conflict with Thunderbird's secure connections. You can disable the antivirus email scanners temporarily to check if that is the culprit.

Password Expiry / App Password: Make sure your password is still the exact one you use to log into the Spectrum Webmail portal.Authentication Requirement: Confirm that Always use secure connection (or similar) is checked alongside STARTTLS in your SMTP settings.

Or had you made a change to it in the past?

Next step If you repair the inbox in Thunderbird, these steps will reconnect to the Spectrum server and cleanse or rebuild your local index.

Do you have a certain spectrum id?