Accept email for another domain without giving all users an address   

I have a site where a few users need to receive email for a second domain. 
ie, All users have an email address in the form of usera@maindomain.com .  A 
few select users also need to recieve email for a second, (or more) domain. 
ie, userb@maindomain.com, as well as userb@seconddomain.com . I do not want 
all users to have an email address on all domains, ie, userb has 
userb@seconddomain.com, but no other users have an email address at this 
domain.

It seems that unless I have a recipeint policy active for @seconddomain.com, 
or relaying is allowed, any SMTP mail is denied, with a 5.7.1 (can't relay) 
response, .  I guess I could turn off the "Automatically Update Email 
addresses Based on recipeint Policy" for each user & set up thier email 
addresses individually, but this seems unweildy.

Is there a way I can tell Excahnge to accept mail for a second domain and 
try to find an owner, without giving eveyone on the site another email 
address, or turning off RUS generated email addreses?

The site is running exchange 2000, SP3 on SBS.


Mal Osborne

date: Wed, 4 May 2005 11:45:52 +0800   author:   Mal Osborne

Re: Accept email for another domain without giving all users an address   

No problem.

Just create another recipient policy that is filtered so no users actually 
recieves an address from that policy. By doin that you tell the system to 
accept the emails to the second domain.

No user will however be stamped with an address of that domain so you have 
to configure the proxy addresses manually on the affected users.

No need to stop RUS or uncheck the auto update checkbox on all the users.

If you don't have the second smtp-domain in a recipient policy the 
organisation will reject the email even if you have users that actually have 
the address on their mailbox.

/Magnus


"Mal Osborne"  wrote in message 
news:eKhMlvFUFHA.3840@tk2msftngp13.phx.gbl...
>I have a site where a few users need to receive email for a second domain. 
>ie, All users have an email address in the form of usera@maindomain.com . 
>A few select users also need to recieve email for a second, (or more) 
>domain. ie, userb@maindomain.com, as well as userb@seconddomain.com . I do 
>not want all users to have an email address on all domains, ie, userb has 
>userb@seconddomain.com, but no other users have an email address at this 
>domain.
>
> It seems that unless I have a recipeint policy active for 
> @seconddomain.com, or relaying is allowed, any SMTP mail is denied, with a 
> 5.7.1 (can't relay) response, .  I guess I could turn off the 
> "Automatically Update Email addresses Based on recipeint Policy" for each 
> user & set up thier email addresses individually, but this seems unweildy.
>
> Is there a way I can tell Excahnge to accept mail for a second domain and 
> try to find an owner, without giving eveyone on the site another email 
> address, or turning off RUS generated email addreses?
>
> The site is running exchange 2000, SP3 on SBS.
>
>
> Mal Osborne
>
>
>

date: Wed, 4 May 2005 11:34:40 +0200   author:   Magnus Gransson