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Can't send emails

Nat
Nat
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After installing the latest update of T-bird I could no longer send emails. The error message says "for an unknown reason" All settings are OK, as before but still can't send. I use the latest version of T-bird (updated 1-2 days ago), Microsoft, Windows 7, Frontier email. Below is a screen shot of my SMTP window. Thanks in advance for your help, Natalie email: natgold@frontiernet.net

After installing the latest update of T-bird I could no longer send emails. The error message says "for an unknown reason" All settings are OK, as before but still can't send. I use the latest version of T-bird (updated 1-2 days ago), Microsoft, Windows 7, Frontier email. Below is a screen shot of my SMTP window. Thanks in advance for your help, Natalie email: natgold@frontiernet.net
Attached screenshots

All Replies (1)

День сумо
День сумо
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Hello there Natgold. We have read your message. We try to help you.

firewall or antivirus software that blocks outgoing e-mail is a known cause for not being able to send messages after updating Thunderbird, since it can be set to trust the previous version of Thunderbird and no longer recognizes the new version as trusted. Remove Thunderbird from the list of trusted programs in its program list, and then add it manually or when prompted to correct it.


http://kb.mozillazine.org/Cannot_send_mail

Greetings Firefox Volunteer.

Modified by День сумо