Comments on: How to Share an Email Domain Between Two Mail Systems http://exchangeserverpro.com/how-to-share-an-email-domain-between-two-mail-systems Microsoft Exchange Server News - Tips - Tutorials Fri, 10 Feb 2012 02:36:56 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Greg http://exchangeserverpro.com/how-to-share-an-email-domain-between-two-mail-systems#comment-6059 Greg Sat, 24 Dec 2011 13:54:03 +0000 http://exchangeserverpro.com/?p=1241#comment-6059 Hi, Hopefully you can help me, we have 2 sites - 2 seperate AD domain and are trying to configure the above so that we can use 1 single email domain for both sites (we have a Branch Office VPN between the sites). We have setup the Source Exchange Server as above and disabled recipient filtering on both Servers but still cannot get this to work correctly. What does the authentication method for the Smart Host Connector need to be? Thanks in advance! Greg Hi,

Hopefully you can help me, we have 2 sites – 2 seperate AD domain and are trying to configure the above so that we can use 1 single email domain for both sites (we have a Branch Office VPN between the sites). We have setup the Source Exchange Server as above and disabled recipient filtering on both Servers but still cannot get this to work correctly. What does the authentication method for the Smart Host Connector need to be?

Thanks in advance!

Greg

]]> By: Zannuzi http://exchangeserverpro.com/how-to-share-an-email-domain-between-two-mail-systems#comment-5947 Zannuzi Mon, 12 Dec 2011 11:11:00 +0000 http://exchangeserverpro.com/?p=1241#comment-5947 Hi Paul, thanks for your reply. I combined both your idea of bi-directional relay domain and also transport rule to detect infinite loop based on below article. Now I can receive emails sent to a single mx domain pointing across multiple exchange forests. Amazinggggg !!!!! http://www.sysadminsblog.com/microsoft/shared-smtp-namespace-during-cross-forest-migration/#comment-492 Hi Paul,
thanks for your reply. I combined both your idea of bi-directional relay domain and also transport rule to detect infinite loop based on below article. Now I can receive emails sent to a single mx domain pointing across multiple exchange forests. Amazinggggg !!!!!

http://www.sysadminsblog.com/microsoft/shared-smtp-namespace-during-cross-forest-migration/#comment-492

]]> By: Paul Cunningham http://exchangeserverpro.com/how-to-share-an-email-domain-between-two-mail-systems#comment-5939 Paul Cunningham Mon, 12 Dec 2011 03:54:43 +0000 http://exchangeserverpro.com/?p=1241#comment-5939 Hi Zannuzi, yes it can, though Exchange has infinite loop detection and will eventually drop the message (I think it does so after 30 loops by default). Hi Zannuzi, yes it can, though Exchange has infinite loop detection and will eventually drop the message (I think it does so after 30 loops by default).

]]> By: Zannuzi http://exchangeserverpro.com/how-to-share-an-email-domain-between-two-mail-systems#comment-5886 Zannuzi Wed, 07 Dec 2011 20:35:07 +0000 http://exchangeserverpro.com/?p=1241#comment-5886 Wont this create an infinite loop between server A and serverB? Wont this create an infinite loop between server A and serverB?

]]> By: Paul Cunningham http://exchangeserverpro.com/how-to-share-an-email-domain-between-two-mail-systems#comment-5561 Paul Cunningham Mon, 14 Nov 2011 11:02:08 +0000 http://exchangeserverpro.com/?p=1241#comment-5561 Hi bluej, if you want the shared name space to be bi-directional then you'd need to set up the correct config on each site. So for example you've already done the 2003 side by the sounds of it, you'd then just need to set the domain as an Internal Relay domain on the 2010 side and configure a Send Connector for that name space. Hi bluej, if you want the shared name space to be bi-directional then you’d need to set up the correct config on each site. So for example you’ve already done the 2003 side by the sounds of it, you’d then just need to set the domain as an Internal Relay domain on the 2010 side and configure a Send Connector for that name space.

]]> By: bluej http://exchangeserverpro.com/how-to-share-an-email-domain-between-two-mail-systems#comment-5533 bluej Wed, 09 Nov 2011 06:01:09 +0000 http://exchangeserverpro.com/?p=1241#comment-5533 I am working on the similar project like what you described here. SMTP domain @example.com is shared by server A and server B. Server A is Exchange 2003 while Server B is Exchange 2010. The two servers are in diffirent forest. The MX record pointing to Server A. @example.com is setup as accept domain but not authroized domain on server A, the coresponding SMTP connector is setup from server A to server B. So the mail flow is no problem from Internet to server A and then server B. But I am confused how could server B to send email someone@example.com to server A? because server B is authorized for example.com. Will it generate NDR? I am working on the similar project like what you described here. SMTP domain @example.com is shared by server A and server B. Server A is Exchange 2003 while Server B is Exchange 2010. The two servers are in diffirent forest. The MX record pointing to Server A. @example.com is setup as accept domain but not authroized domain on server A, the coresponding SMTP connector is setup from server A to server B. So the mail flow is no problem from Internet to server A and then server B. But I am confused how could server B to send email someone@example.com to server A? because server B is authorized for example.com. Will it generate NDR?

]]> By: Paul Cunningham http://exchangeserverpro.com/how-to-share-an-email-domain-between-two-mail-systems#comment-5309 Paul Cunningham Mon, 10 Oct 2011 10:12:32 +0000 http://exchangeserverpro.com/?p=1241#comment-5309 Don, once you point the MX records at your own server you'll start receiving the email to your server (after DNS refresh delay - suggest turning the TTL for your MX record down to 5 minutes a few days in advance of the cutover). Don, once you point the MX records at your own server you’ll start receiving the email to your server (after DNS refresh delay – suggest turning the TTL for your MX record down to 5 minutes a few days in advance of the cutover).

]]> By: Don http://exchangeserverpro.com/how-to-share-an-email-domain-between-two-mail-systems#comment-5267 Don Sun, 02 Oct 2011 06:56:20 +0000 http://exchangeserverpro.com/?p=1241#comment-5267 Hi Paul, We currently have our exchange mail system (mail.com) hosted by another company. I setup an exchange server here on site (mail.net) and everything is working fine. However, soon I need to migrate the mail.com address completely over to our servers. Could you give me your recommendation on the easiest way to do this without any configuration changes on the other end? Thanks, Don Hi Paul,
We currently have our exchange mail system (mail.com) hosted by another company. I setup an exchange server here on site (mail.net) and everything is working fine. However, soon I need to migrate the mail.com address completely over to our servers. Could you give me your recommendation on the easiest way to do this without any configuration changes on the other end?
Thanks, Don

]]> By: Avoiding Infinite Loops with Internal Relay Domains in Exchange 2007/2010 http://exchangeserverpro.com/how-to-share-an-email-domain-between-two-mail-systems#comment-5206 Avoiding Infinite Loops with Internal Relay Domains in Exchange 2007/2010 Sat, 24 Sep 2011 12:44:15 +0000 http://exchangeserverpro.com/?p=1241#comment-5206 [...] Internal Relay domains are commonly used in shared SMTP namespace scenarios, where two separate mail systems both use the same domain name for email. If you want to know more about this scenario read How to Share an Email Domain Between Two Mail Systems. [...] [...] Internal Relay domains are commonly used in shared SMTP namespace scenarios, where two separate mail systems both use the same domain name for email. If you want to know more about this scenario read How to Share an Email Domain Between Two Mail Systems. [...]

]]> By: Paul Cunningham http://exchangeserverpro.com/how-to-share-an-email-domain-between-two-mail-systems#comment-5143 Paul Cunningham Fri, 09 Sep 2011 13:23:37 +0000 http://exchangeserverpro.com/?p=1241#comment-5143 I haven't had to deal with it myself, but this white paper has cross-forest autodiscover guidance in it. http://blogs.technet.com/b/exchange/archive/2007/10/03/3404056.aspx I haven’t had to deal with it myself, but this white paper has cross-forest autodiscover guidance in it.

http://blogs.technet.com/b/exchange/archive/2007/10/03/3404056.aspx

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