How Do I send/recieve through Exchange with a different domain

I had this working in the past. Our server crashed and had to be rebuilt.
I had alternate email accounts for my users through Exchange using a different domain name- built into SBS2003

Example (made up domain name):

My current business domain: ABCDEFGHIJKL.COM
I changed the MX/a records to point to my exchange server with the registra I purchased the domain from.

The owner realized that it's hard to communicate the above domain name for his companies emails - Joeexample@ABCDEFGHIJKL.COM  to his clients.
He purchases another domain name: ABC.COM from a different registra.
I connected to that registra an pointed the MX/a records to my server@ABCDEFGHIJKL.COM and our static IP

I went into the Server manager within SBS 2003
I opened a the user properties and choose the E-Mail Addresses tab
I created a new SMTP account using the newly purchased domain name
Example: Chris@ABC.COM

I get this message when I attempt to send an email:

Your message cannot be delivered to the following recipients:

  Recipient address: Chris@ABC.com
  Reason: Remote SMTP server has rejected address
  Diagnostic code: smtp;550 5.7.1 Unable to relay for Chris@ABC.com
  Remote system: dns;server@ABCDEFGHIJKL.COM (TCP|xxx.xxx.x.xxx|40174|xx.xx.xx.xxx|25)

What am I doing wrong? What did I forget to do?
GeeMoonIT ConsultantAsked:
Who is Participating?
 
MichaelVHConnect With a Mentor Commented:
GeeMoon, that is possible, YES :-)

If I'm correct you can even just add the new domain to the default policy (just make sure that you don't set the new domain as default) and you're off :-)
Basically, you add the new domain als an alternative domain to the default policy.

Grts,

Michael
0
 
MichaelVHCommented:
In order for Exchange 2003 to accept new/other email domains you have to create a recipient-policy with that email-address in it.

Can you confirm that you created one?
0
 
GeeMoonIT ConsultantAuthor Commented:
I have not. Will this affect my original business domain accounts????
0
Worried about phishing attacks?

90% of attacks start with a phish. It’s critical that IT admins and MSSPs have the right security in place to protect their end users from these phishing attacks. Check out our latest feature brief for tips and tricks to keep your employees off a hackers line!

 
MichaelVHCommented:
GeeMoon,

that really depends on how you create your policy.
Each policy has a filter. With that filter you can filter down to what users you want to give that new email-domain.

If you do that correctly, that won't have an impact on the other domains.

For more information on creating recipient policies, look here:
http://technet.microsoft.com/en-us/library/aa998932(EXCHG.65).aspx
0
 
GeeMoonIT ConsultantAuthor Commented:
I appreciate the quick response. Thank you.

Before I start reading through the provided material:

I just want to make sure I am clear to you in what I am trying to accomplish.
A user will receive their normal corporate business emails as usual - no disruption. They would also be able to receive emails from an alternate email address with a different domain name.

I am obviously using the default Exchange - SBS 2003 policy - one I didn't personally have a hand in.

Is this possible?
0
 
GeeMoonIT ConsultantAuthor Commented:
Thanks MichaelVH:

Is there any kind of delay in the update of the policy? Will I need to push the policy in any way or will I see immediate result via a test email?
0
 
MichaelVHCommented:
If I'm correct it will ask you to update the recipients right away or not at the end. You can apply them immediatly.

Michael
0
 
GeeMoonIT ConsultantAuthor Commented:
Thank You MichaelVH:

I was able to add the new domain to the default policy. It did ask to apply the changes to the policy while I was editing. My email tests were successful.

Thank You!
0
 
GeeMoonIT ConsultantAuthor Commented:
MichaelVH was right on the money. Much thanks to him
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.