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Exchange 2010 Multiple Domain email addresses not working

I have an Exchange 2010 with multiple domains and was ask to add one more additional domain.

These are the steps I took to add the additional domain but when I did a test from my gmail account to the new domain, the test email did not go thru to username@newdomain.com.

I check the new certificate on my webmail and the additional DNS name is on the certificate.

1. I have created a new CSR on the exchange server and re-key the ssl cert on godaddy and reinstall the new CSR.
2. Create a New Accepted Domain --> EMC > Organization Configuration > Hub Transport > Accepted Domains
3. Create a New Email Address Policies > EMC > Organization Configuration > Hub Transport > E-Mail Address Policies -----All recipient type |Recipient is in a Company | SMTP
4. Create additional SMTP address in Usermailbox Properties ---> EMC > Recipient Configuration > Mailbox > UserMailbox > Properties > E-Mail Address Tap > SMTP -- add new username@newdomain.com

What am I missing? Please help.

Thank you.

R--R

To receive email from internet for the new smtp domain you have to create a MX record at public dns server and point it to your public IP.
Also check if it is working internally.

R. Andrew Koffron

also thought while reading this, that MX record wasn't pointed correctly.

c7oi

ASKER

I have update the MX record at public DNS server and point it to my MX record public IP. I have confirm it on the mxtoolbox.com that the MX record is updated. When I send an email thru gmail, I am getting a bounce back.

Error message:

Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the server for the recipient domain newdomain.com by mx.domain.com. [x.x.x.x].

The error that the other server returned was:
550 5.7.1 Unable to relay for <c7oi@newdomain.com>

I am able to email internal with the new smtp address.

What else is missing? Please advice.

Thank you.

R. Andrew Koffron

did you add the domain name to accepted domains in the EMC?
Exchange management console
-microsoft exchange on-premisies (SERVERNAME)
--Orginization configuration
---Hub transport.
----Accepted domains?

c7oi

ASKER

Yes, I add the domain name to accepted domains in the EMC

R. Andrew Koffron

try manually sending in a mail on telnet, should be able to use local addresses when connected directly to the server.
http://www.spamsoap.com/how-to-manually-send-an-email-message-via-telnet-to-port-25/

c7oi

ASKER

I am able to telnet with the new domain name and send email to our existing domain but I cannot send email to external email (gmail). I get Unable to relay, and I still cannot send from gmail to my new domain.

220 MX.domain.com Microsoft ESMTP MAIL Service ready at Thu, 8 May 2014 14:23
helo newdomain.com
250 MX.domain.com Hello [10.10.11.87]
mail from: c7oi@newdomain.com
250 2.1.0 Sender OK
rcpt to: xxx@gmail.com
550 5.7.1 Unable to relay
rcpt to: c7oi@old-domain.com
250 2.1.5 Recipient OK

When I use my Outlook to send with the new domain email address; using my current profile which is setup with the old-domain.com email address, I cannot sent email internal or external. I get this error:

Delivery has failed to these recipients or groups:
xxx@old-domain.com
You can't send a message on behalf of this user unless you have permission to do so. Please make sure you're sending on behalf of the correct sender, or request the necessary permission. If the problem continues, please contact your helpdesk.

I have added additional SMTP address to my Outlook Properties on EMC.

ASKER CERTIFIED SOLUTION

c7oi

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Seth Simmons

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