Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Mozilla サポートの検索

サポート詐欺に注意してください。 私たちはあなたに通話やショートメッセージの送信、個人情報の共有を求めることはありません。疑わしい行為を見つけたら「迷惑行為を報告」からご報告ください。

詳しく学ぶ

このスレッドはアーカイブに保管されました。 必要であれば新たに質問してください。

Thunderbird wont let me send emails./

  • 1 件の返信
  • 2 人がこの問題に困っています
  • 324 回表示
  • 最後の返信者: Lin
  • アーカイブに保管済み

Good morning, I can recieve emails, but we can not send any emails. we keep getting the same error message

"Sending of the message Failed.

The Message could not be sent because connecting to outgoing sever (SMTP) 

mail.maddashtransport.com failed. The server may be unavailable or is refusing SMTP connections. Please verifty that your Outgoing Server (SMTP) settings are correct and try again."

We checked the settings and they are the same as before when it was working.

Good morning, I can recieve emails, but we can not send any emails. we keep getting the same error message "Sending of the message Failed. The Message could not be sent because connecting to outgoing sever (SMTP) mail.maddashtransport.com failed. The server may be unavailable or is refusing SMTP connections. Please verifty that your Outgoing Server (SMTP) settings are correct and try again." We checked the settings and they are the same as before when it was working.

すべての返信 (1)

Looks like "maddashtransport.com" is a Canadian trucking company rather than a common public ISP or email service. Does that company run their own email servers? Can you confirm with them the proper SMTP settings? That error message suggests to me that you have either an incorrect server name or port number. Or, they could be having server issues on their end.