当サイトはユーザー体験を改善するためのメンテナンスを実施中に機能が制限される予定です。記事を読んでもあなたの問題が解決せず質問をしたい場合は、Twitter の @FirefoxSupport、Reddit の /r/firefox で、サポートコミュニティが皆さんを助けようと待機しています。

Mozilla サポートの検索

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.

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。

I cannot send an email with Thunderbird

  • 6 件の返信
  • 2 人がこの問題に困っています
  • 1 回表示
  • 最後の返信者: KevinCom

more options

I get the following error message when trying to send an email as of this morning.


"An error occurred while sending mail. The mail server responded: 5.1.0 Authentication required. Please verify that your email address is correct in your account"

I have my outgoing server configures as it says it the help menu when using comcast
I get the following error message when trying to send an email as of this morning. "An error occurred while sending mail. The mail server responded: 5.1.0 Authentication required. Please verify that your email address is correct in your account" I have my outgoing server configures as it says it the help menu when using comcast

選ばれた解決策

Error=No Authentication

Your setting - Authentication method = No Authentication

Should be normal password.

この回答をすべて読む 👍 1

すべての返信 (6)

more options

What are you using for SMTP settings? It sounds like they are not right.

more options

Description: Comcast Server Name: smtp.comcast.net port: 465 User Name: <not specified> Authentication method: No authentication connection security: SSL/TLS

more options

選ばれた解決策

Error=No Authentication

Your setting - Authentication method = No Authentication

Should be normal password.

more options

https://support.mozilla.org/en-US/kb/cannot-send-messages#w_verify-the-correct-smtp-server-is-being-used

Thank you, it did fix it, I don't know why or how it got changed, it worked fine yesterday.

The link I posted above shows to have it set to "No Authentication" ????

Thanks again.

more options

Unfortunately everything you read on the Internet is not true.

This is from Comcast page.

   Incoming Mail Server Name: imap.comcast.net
   Incoming Mail Server Port Number:
       Recommended: 993 with SSL ON
       Only if Needed: 143 with SSL ON
   Outgoing Mail Server Name: smtp.comcast.net
   Outgoing Mail Server Port Number:
       Recommended: 587 (SMTP)
       Only if Needed: 465 (SMTPS)
   SSL Encryption: checked
   Authentication: XFINITY username and password required

The provider configures their servers and should have the most up to date info. I happen to use Comcast so i know what they are looking for. Keep in mind that Thunderbird is a volunteer operation and some documentations is slow to be updated.

more options

Got it, thanks again