Recipient address rejected: Access denied

Posted on 2009-04-30
Last Modified: 2012-05-06
I have an SBS2003 server with Exchange setup using the POP and SMTP Connectors.  Users are sending and receiving emails just fine except when sending to non-Exchange users with the same email domain.  Example: sends to  I found this article on Microsoft that addresses this exact issue  I am not updating users with Recipient Policies as this was causing a problem with changing the Reply To email address.  I entered the ISP's mail server where the article tells me to as ISPMAILSERVER.COM and are no longer getting the error message and emails are gertting sent out from Exchange but are never received by the recipients.  When I change the ISP's mail server to SMTP.ISPMAILSERVER.COM, I get the error message in the title "Recipient address rejected: Access denied".  The ISP Mail server requires authentication on their outgoing email so I am assuming this is the cause but I don't know where in Exchange to enter login credentials to allow emails to get through.  
Question by:cjanus0927
    LVL 6

    Assisted Solution


    Author Comment

    Thanks for the info but I am not trying to relay all my email through the ISP''s email server.  I have everything setup and working right now.  It is only when I try to send email to non-Exchange users of the same email domain that I ma having trouble.
    LVL 65

    Assisted Solution

    Sounds like you are trying to share the SMTP address space. This KB article covers that:


    Accepted Solution

    I found the answer I was looking for on Microsoft.  Adding a second Recipient Policy is what solved the problem for me.  This was in the original KB article I posted covering Method No. 2.  Thanks for your responses.  

    Featured Post

    How to run any project with ease

    Manage projects of all sizes how you want. Great for personal to-do lists, project milestones, team priorities and launch plans.
    - Combine task lists, docs, spreadsheets, and chat in one
    - View and edit from mobile/offline
    - Cut down on emails

    Join & Write a Comment

    One of the Top 10  common Cisco VPN problems are not-matching shared keys. This is an easy one to fix, but not always easy to notice, see the case below. A simple IPsec tunnel between fast Ethernet interfaces of routers SW1 (f1/1) and R1(f0/0). …
    Using Windows 2008 RRAS, I was able to successfully VPN into the network, but I was having problems restricting my test user from accessing certain things on the network.  I used Google in order to try to find out how to stop people from accessing c…
    After creating this article (, I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
    After creating this article (, I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

    755 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    24 Experts available now in Live!

    Get 1:1 Help Now