Accepted Domain - Recipient address rejected: Access denied 554 5.7.1 - Exchange 2007

Migrated from SBS 2003 to SBS 2007 and changed the internal domain name. SBS 2003 was receiving e-mails for and

Migration went well, exchange is up and running and functioning for but I cannot get e-mails to be received on

We are using Trend Micro Hosted E-mail and getting an NDR sent back: #554 5.7.1 <>: Recipient address rejected: Access denied ##

I have added as an accepted domain.
I have adjusted email policy to add this an smtp address, and confirmed it was added to the mailbox user
I have added the IP address range for Trend on the receive connector to allow e-mail to be received.
I have selected "anonymous users" for the permission groups on receive connector.
I have selected TLS and basic authentication on receive connector.
I have allowed the remote IP address on the anti-spam tab. (I even disabled and tested)

Any ideas what I'm missing?
Who is Participating?
bustechllcAuthor Commented:
Looks like this is being caused by spam filtering.
They are rejecting you because you are a dynamic IP user.

You may be able to request that your ISP create a proper PTR (or reverse DNS entry) for you, but I think the better option will be to use an SMTP connector and your ISPs mailserver as a smarthost - as described here ->
bustechllcAuthor Commented:
This is exchange 2007. ISPs mailserver was setup as a smarthost, followed the SBS Wizard for this.

Emails is fine for but not

Nothing changed except for the exchange server - all mx records are pointing to the same place, same trend micro. I think it's because there's a configuration in exchange that is missing to allow e-mail to come in for
bustechllcAuthor Commented:
when i try to send internally from to i get:

Diagnostic information for administrators:

Generating server: (tcp-daemon)
#< #5.4.4> #SMTP#

bustechllcAuthor Commented:
Not solved.
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.