SMTP AUTHENICATION

[ericgo]

Arnor 大大, help!!

我使用的mail client軟體是Becky! Internet Mail. 透過smtp auth驗證,郤始終無法通過,之前也為此問了不少問題,結論是maild架構.設定都對,就是能收信不能發信.
後來改用outlook express,居然一試就通,因使用2maild架構,確定是smtp auth問題,我上Becky! Internet Mail討論區去找答案,也有人提出相似問題,後來其作者有下了一個結論,就是server使用所謂的Qmail SMTPD Auth,會錯報其支援其中的MD5格式,但實際上卻有問題, 而Outlook express本來就不支援MD5,故反而不會出問題.這是Qmail SMTPD Auth之Bug,請user和mail server提供者聯繫.

我查看Becky和Maild之間的protocol record,也有提到MD5, 請問Arnor大大能協助解釋並進而解決這問題嗎? 以下節錄該討論區重點部份供大大參考.


QUOTE

.......

OK. I''ve had word from Carty on this. This bit here..


quote:
--------------------------------------------------------------------------------
250-AUTH LOGIN CRAM-MD5 PLAIN
250-AUTH=LOGIN CRAM-MD5 PLAIN
--------------------------------------------------------------------------------

Basically, Becky asked the SMTP Server what it supported & it listed CRAM-MD5 as one of them. Well, in the case of Qmail, that is not a correct response. Qmail does not support CRAM-MD5. But, since it told Becky that it did, then that is exactly what it got.. MD5.

I''m not certain at this point if this is simple Qmail configuration issue or not. I''ll post more when I know.

I do know Outlook (lots of versions) do work because Outlook does not support MD5 either & ignores the response anyway.

--------------------------------------------------------------------------------
Right, this is a little complex.

Firstly, this is not a problem with Becky or Qmail (the SMTP Server in question). Qmail does not actually support SMTP Auth at all. This functionality is provided by a compatible add-on or patch. In our case, this was something called Qmail SMTPD Auth. It was this add-on that was wrongly reporting to Becky that it supported MD5. The add-on does claim to support MD5. But, our support people couldn''t find anybody that was running it & using MD5.

In the end they had to modify the SMTP code (the add-on code I assume) to not report MD5 support.

So, where do we stand?

Basically, it is ISP''s fault. They do not probably understand the significance of the MD5 issue & why Outlook does not care (probably their test email client). I recommend that you point out to your ISP that their SMTP server is reporting that it supports CRAM-MD5 SMTP Auth, whilst it actually doesn''t. At a push, tell them you want to use MD5 as their SMTP Server claims that it can support it. After all, it is the most secure method. Now, since Outlook doesn''t support MD5 (point this out if you need to) this will, at least, force them to use something other than Outlook to test what you''re talking about.

--------------------



UNQUOTE
_________________
Eric Wu

[Arnor]

我會裝個becky 來試試的,
相信應該會有解決辦法的.
_________________
*若是想問問題的話, 請務必不要塗改任何 IP, 網域資料, 您若不願貼上IP或網域, 請改以電子郵件來詢問. 謝謝您的配合.*
*若是回報疑似軟體的運行或邏輯或資料處理有誤的問題, 小弟很樂意去了解您的情況, 但請務必以最新版來做回報, 如果以郵件詢問, 請參考 http://www.raidenmaild.com/tw/feedback.html 的說明, 最好標題加個 RaidenMAILD 字樣, 才不致會遺漏了您的信唷. 謝謝您的配合^^*
*在版上發文請遵守網路禮儀, 並請持著虛心敘述問題請教他人, 凡發現違反的文, 均一律刪除為優先, 不另行通知喔.
*與使用者教學相長腦力激盪是我輩成就感的來源, 誠心希望您能不吝指教.
*雷電MAILD 知識庫文件 http://www.raidenmaild.com/tw/kb/

素還尊
Team John Long.
Email: [email protected]
公司網站 http://www.raidenmaild.com/company/

[Arnor]

我已經找到問題了,
md5 部份有誤沒錯,
下版我會把它改正的..
謝謝你的回報 ^^
_________________
*若是想問問題的話, 請務必不要塗改任何 IP, 網域資料, 您若不願貼上IP或網域, 請改以電子郵件來詢問. 謝謝您的配合.*
*若是回報疑似軟體的運行或邏輯或資料處理有誤的問題, 小弟很樂意去了解您的情況, 但請務必以最新版來做回報, 如果以郵件詢問, 請參考 http://www.raidenmaild.com/tw/feedback.html 的說明, 最好標題加個 RaidenMAILD 字樣, 才不致會遺漏了您的信唷. 謝謝您的配合^^*
*在版上發文請遵守網路禮儀, 並請持著虛心敘述問題請教他人, 凡發現違反的文, 均一律刪除為優先, 不另行通知喔.
*與使用者教學相長腦力激盪是我輩成就感的來源, 誠心希望您能不吝指教.
*雷電MAILD 知識庫文件 http://www.raidenmaild.com/tw/kb/

素還尊
Team John Long.
Email: [email protected]
公司網站 http://www.raidenmaild.com/company/

[ericgo]

太棒了,
一覺醒來,睡前post的問題已有答案.
尊龍團隊的效率,就是這麼讓人滿意.

Arnor大大,謝謝了,btw,該睡的覺也別省略了.
_________________
Eric Wu