Aliasing domain names

Question

I'm trying to create an alias of a domain name. That is <anyname>@a.com is the same mailbox as <anyname>@b.com. I was trying to use Delegated Administrator to set this up. In the DA interface, there is a box under root->a.com (menu)->organizations->Organization Properties->Domain Information there is a field called: "Alias Names for Domain". I set this to "b.com". I'm assuming this is supposed to be a domain alias.
This seems to map into the ldap schema as: associateddomain: b.com
However, when I send mail, it doesn't go through. Instead I get:
05-Feb-2009 13:09:20.52 tcp_intranet JES 0 [email protected] rfc822; [email protected] 550 5.1.1 unknown or illegal alias: [email protected]
My main question is the "Alias Names for Domain" supposed to work as I expect, or is it there to do something else.
I am able to make it work if I set up a user alias in DA. That in, in DA, for user [email protected], I set 'Email Aliases:' to [email protected] Then mail to [email protected] works.
Thanks!
bash-3.2# ./imsimta version
Sun Java(tm) System Messaging Server 7.0-3.01 64bit (built Dec 9 2008)
libimta.so 7.0-3.01 64bit (built 09:24:13, Dec 9 2008)
bash-3.2# ./commadmin -vV Delegated Administrator 6.4-3.01 (B2008-10-22)

Answer 1

jandrusiak wrote:
I'm trying to create an alias of a domain name. That is <anyname>@a.com is the same mailbox as <anyname>@b.com. I was trying to use Delegated Administrator to set this up. In the DA interface, there is a box under root->a.com (menu)->organizations->Organization Properties->Domain Information there is a field called: "Alias Names for Domain". I set this to "b.com". I'm assuming this is supposed to be a domain alias.
This seems to map into the ldap schema as: associateddomain: b.com
However, when I send mail, it doesn't go through. Instead I get:
05-Feb-2009 13:09:20.52 tcp_intranet JES 0 [email protected] rfc822; [email protected] 550 5.1.1 unknown or illegal alias: [email protected]
My main question is the "Alias Names for Domain" supposed to work as I expect, or is it there to do something else.
I am able to make it work if I set up a user alias in DA. That in, in DA, for user [email protected], I set 'Email Aliases:' to [email protected]. Then mail to [email protected] works.
There is two methods to create a domain alias. The first is an MTA-level domain rewrite rule which rewrites the envelope recipient address from <something>@b.com => <something>@a.com. This approach is much quicker to implement in the short term but has the disadvantage of limited flexibility i.e. users are "forced" to have the email alias.
To achieve this domain alias you add the following rewrite rule to your imta.cnf file:
b.com      $E$F$U%a.com@localhostThe second method is the one that you already started to implement. That method is to assign the alias domain (b.com) to a specific user/group schema 2 branch by adding "associateddomain: b.com". Then for each user who needs to have the alias, add an entry to their Email Aliases (mailalternateaddress:).
The advantage of the second method is that you only have to assign an email alias to those users who want/need it. Also if the user has [email protected], there is no reason why they have to have [email protected], you could assign them [email protected] instead.
I recommend you continue with the second method.
Regards,
Shane.