XEXCH50 COMMAND - Article ID : 843106

XEXCH50 COMMAND - Article ID : 843106

The KBA 843106 talks about not sending the xexch50 command to foreign mail 
servers to avoid 7004 errors (see excerpt below).  What is not clear to me is 
the implications of doing so -can anyone provide details or refer me to a KBA 
that does ?  Also, the error indicates that the email was probably not 
delivered, but the message tracking console says it was transferred to the 
other smtp server, & the smtp log file seems to verify that.  Does that mean 
this message can be ignored, i.e.: the message was transferred ok despite the 
fact the receiving server did not recognize the xexch50 command ? 

excerpt:
Event ID 7004 with error 504 is also expected if the server is an external 
Internet server (Exchange 2000 Server or Exchange Server 2003).

If an Exchange 5.5 server has version 5.5.2657.72 of Msexcimc.exe or later 
of the Internet Mail Service (IMS) connector, and if the Exchange 5.5 server 
exists in an e-mail domain that is external to the sending Exchange 2000 
Server computer or to the Exchange Server 2003 computer, the receiving 
Exchange 5.5 IMS connector will not understand the XEXCH50 command from the 
sending Exchange Server computer. The 7004 event with the "505 Authentication 
required" error in the application log on the sending Exchange Server 
computer is typical when mail is being sent from an Exchange 2000 Server 
computer or from an Exchange Server 2003 computer to an Exchange 5.5 Server 
computer in an external e-mail domain over the Internet. One way to resolve 
this issue to suppress sending the XEXCH50 command outside the Exchange 
organization where the Exchange 2000 Server computer or the Exchange Server 
2003 computer resides.

To resolve this behavior on the Exchange 2000 Server computer or on the 
Exchange Server 2003 computer, you can set the SuppressExternal registry key 
to 1. This setting prevents Exchange Server from trying to send the XEXCH50 
command outside the Exchange organization. For more information about how to 
create the SuppressExternal registry key and set it to 1, click the following 
article number to view the article in the Microsoft Knowledge Base: 


-- 
thanks,


Steve Paul

date: Wed, 15 Mar 2006 18:20:27 -0800 author: Steve Paul

Re: XEXCH50 COMMAND - Article ID : 843106

Theres no implication of not sending the XEXCH50 to foreign Exchange systems that do not belong to you. As a matter of fact ...you certainly dont want to do that. The information in XEXCH50 blobs is only relevant and useful for internal servers within the same org. There are some scenarios where you may need it for other orgs you have that are connected e.g cross-forest authentication scenarios.

"Steve Paul" wrote in message news:8D2BF826-C18B-4AEF-A834-6F4F2C94DB26@microsoft.com...
The KBA 843106 talks about not sending the xexch50 command to foreign mail
servers to avoid 7004 errors (see excerpt below). What is not clear to me is
the implications of doing so -can anyone provide details or refer me to a KBA
that does ? Also, the error indicates that the email was probably not delivered, but the message tracking console says it was transferred to the
other smtp server, & the smtp log file seems to verify that. Does that mean
this message can be ignored, i.e.: the message was transferred ok despite the
fact the receiving server did not recognize the xexch50 command ?

excerpt:
Event ID 7004 with error 504 is also expected if the server is an external
Internet server (Exchange 2000 Server or Exchange Server 2003).

If an Exchange 5.5 server has version 5.5.2657.72 of Msexcimc.exe or later
of the Internet Mail Service (IMS) connector, and if the Exchange 5.5 server
exists in an e-mail domain that is external to the sending Exchange 2000
Server computer or to the Exchange Server 2003 computer, the receiving Exchange 5.5 IMS connector will not understand the XEXCH50 command from the
sending Exchange Server computer. The 7004 event with the "505 Authentication
required" error in the application log on the sending Exchange Server
computer is typical when mail is being sent from an Exchange 2000 Server
computer or from an Exchange Server 2003 computer to an Exchange 5.5 Server
computer in an external e-mail domain over the Internet. One way to resolve
this issue to suppress sending the XEXCH50 command outside the Exchange
organization where the Exchange 2000 Server computer or the Exchange Server
2003 computer resides.

To resolve this behavior on the Exchange 2000 Server computer or on the
Exchange Server 2003 computer, you can set the SuppressExternal registry key
to 1. This setting prevents Exchange Server from trying to send the XEXCH50
command outside the Exchange organization. For more information about how to
create the SuppressExternal registry key and set it to 1, click the following
article number to view the article in the Microsoft Knowledge Base:

--
thanks,

Steve Paul

date: Mon, 20 Mar 2006 16:24:48 -0500 author: Ade Famoti [MSFT]

Re: XEXCH50 COMMAND - Article ID : 843106

thank you for your quick & detailed response
-- 
Steve Paul


"Ade Famoti [MSFT]" wrote:

> Theres no implication of not sending the XEXCH50 to foreign Exchange systems that do not belong to you. As a matter of fact ...you certainly dont want to do that. The information in XEXCH50 blobs is only relevant and useful for internal servers within the same org. There are some scenarios where you may need it for other orgs you have that are connected e.g cross-forest authentication scenarios.
> 
>   "Steve Paul"  wrote in message news:8D2BF826-C18B-4AEF-A834-6F4F2C94DB26@microsoft.com...
>   The KBA 843106 talks about not sending the xexch50 command to foreign mail 
>   servers to avoid 7004 errors (see excerpt below).  What is not clear to me is 
>   the implications of doing so -can anyone provide details or refer me to a KBA 
>   that does ?  Also, the error indicates that the email was probably not 
>   delivered, but the message tracking console says it was transferred to the 
>   other smtp server, & the smtp log file seems to verify that.  Does that mean 
>   this message can be ignored, i.e.: the message was transferred ok despite the 
>   fact the receiving server did not recognize the xexch50 command ? 
> 
>   excerpt:
>   Event ID 7004 with error 504 is also expected if the server is an external 
>   Internet server (Exchange 2000 Server or Exchange Server 2003).
> 
>   If an Exchange 5.5 server has version 5.5.2657.72 of Msexcimc.exe or later 
>   of the Internet Mail Service (IMS) connector, and if the Exchange 5.5 server 
>   exists in an e-mail domain that is external to the sending Exchange 2000 
>   Server computer or to the Exchange Server 2003 computer, the receiving 
>   Exchange 5.5 IMS connector will not understand the XEXCH50 command from the 
>   sending Exchange Server computer. The 7004 event with the "505 Authentication 
>   required" error in the application log on the sending Exchange Server 
>   computer is typical when mail is being sent from an Exchange 2000 Server 
>   computer or from an Exchange Server 2003 computer to an Exchange 5.5 Server 
>   computer in an external e-mail domain over the Internet. One way to resolve 
>   this issue to suppress sending the XEXCH50 command outside the Exchange 
>   organization where the Exchange 2000 Server computer or the Exchange Server 
>   2003 computer resides.
> 
>   To resolve this behavior on the Exchange 2000 Server computer or on the 
>   Exchange Server 2003 computer, you can set the SuppressExternal registry key 
>   to 1. This setting prevents Exchange Server from trying to send the XEXCH50 
>   command outside the Exchange organization. For more information about how to 
>   create the SuppressExternal registry key and set it to 1, click the following 
>   article number to view the article in the Microsoft Knowledge Base: 
> 
> 
>   -- 
>   thanks,
> 
> 
>   Steve Paul

date: Tue, 21 Mar 2006 07:55:27 -0800 author: Steve Paul