550 5.7.1 Access denied when sending to certain domains
Posted on 2006-11-02
We have an exchange small business server (2003, sp1). It controls email for a few domains, namely mp3car.com.
We recently moved email for streetdeck.com from an external host to our exchange server. I added this to the default recipient policy and email is working fine. The problem came when I changed a few users to have @streetdeck as their primary email address. It works fine for almost all domains, but we are having a problem with one of them: goldsys.com. When streetdeck is the primary email it bounces, when mp3car is it goes through fine.
Here is the bounce back email:
firstname.lastname@example.org on 11/2/2006 2:10 PM
You do not have permission to send to this recipient. For assistance, contact your system administrator.
<exchange.innovateusa.com #5.7.1 smtp;550 5.7.1 Access denied>
I get even 7004 in the event viewer:
This is an SMTP protocol error log for virtual server ID 1, connection #247. The remote host "126.96.36.199", responded to the SMTP command "mail" with "550 5.7.1 Access denied ". The full command sent was "MAIL FROM:<email@example.com> ". This will probably cause the connection to fail.
I tried telneting to mx1.goldys.com, I can connect but I get 550 5.7.1 access denied whenever I try any address using the "MAIL FROM:" command. I don't see how they could be blocking our server if the same server can successfully send email with one domain, but not the other.