500 5.3.3 unrecognized command

Suddenly our Exchange 2010 started posting following error. I tried to telnet to it but got this report 500 5.3.3 Unreco...

500 5.3.3 unrecognized command

Suddenly our Exchange 2010 started posting following error. I tried to telnet to it but got this report 500 5.3.3 Unrecognized command. ,日付: 2017年8月2日 20:26 件名: Delivery Status Notification (Failure) To: [a:mailto:,. Diagnostic-Code: smtp; 500 5.3.3 Unrecognized command

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500 5.3.3 unrecognized command 相關參考資料
5.3.3 smtp 500 5.3.3 unrecognized command - TechNet!

I think its happening while sending mail to Large no of users or to DL. 5.3.3 smtp 500 5.3.3 unrecognized command. Is any one have any idea ...

https://social.technet.microso

500 5.3.3 Unrecognized command - Microsoft Technet

Suddenly our Exchange 2010 started posting following error. I tried to telnet to it but got this report 500 5.3.3 Unrecognized command.

https://social.technet.microso

500 5.3.3 Unrecognized command error - Microsoft Technet

日付: 2017年8月2日 20:26 件名: Delivery Status Notification (Failure) To: [a:mailto:,. Diagnostic-Code: smtp; 500 5.3.3 Unrecognized command

https://social.technet.microso

Issue receiving email from One sender - SMTP 500 5.3.3 ...

Issue receiving email from One sender - SMTP 500 5.3.3 Unrecognized Command. Sean Surles. by Sean Surles ∙ Aug 17th, 2018 at 9:15am. Hello all,.

https://community.spiceworks.c

Mail server on port 25 only response with 500 command not ...

When I enter the command "helo" I get "500 5.3.3 Unrecognized command" no matter what I enter, even "quit" I get the same response. The website MXToolbox ...

https://serverfault.com

在Exchange 伺服器上使用Telnet 測試SMTP 通訊| Microsoft Docs

無法辨識的SMTP 命令或語法錯誤會導致錯誤訊息,看起來像這樣: 500 5.3.3 Unrecognized command Unrecognized SMTP commands or syntax ...

https://docs.microsoft.com

如何使用Telnet 來測試SMTP 通訊 - [數碼中文坊] - 手機版 ...

L8 B# E. q$ ~500 5.3.3 Unrecognized command ?! q9 k( X9 S3 s 5 h8 G% s$ b, P* X# A2 -* b5 L/ u 使用Nslookup 命令列工具尋找SMTP 伺服器的IP 位址" D3 W/ ...

http://www.suma.tw