[Last Call] Learn how to a build a cloud-first strategyRegister Now

  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 295
  • Last Modified:

Email non-delivery in exchange 2003

Having a problem with mail delivery for one user.  We are using SBS 2003 &  Ex2003 and have had to continue our use of an external POP3 provider.  Mail directed to an internal  user that does not have an account on our SBS /  exchange system (me@MyDomain.com) BUT does have an account on the POP3 provider system  (me@MyDomain.com) is not being delivered to the POP3 provider.  We instead get an NDR report.  

I cannot change his email address (me@MyDomain.com).  A contact record results in a server bounce. I am unable to deploy OWA in the short term.

How can I get the mail originating internally for this individual to be delivered to the POP3 system?
1 Solution

You need to split your SMTP namespace. Have all mail delivered to Exchange, but tell Exchange what to do when it gets a message addressed to a contact it doesn't know about. This essentially means entering the name (or IP) of the POP3 host's server.

Take a look at http://www.msexchange.org/tutorials/Exchange-2003-SMTP-Namespace-Sharing.html.

sfsrmAuthor Commented:
The solution proposed is exactly correct for my situation.  Many Thanks!

Featured Post

Visualize your virtual and backup environments

Create well-organized and polished visualizations of your virtual and backup environments when planning VMware vSphere, Microsoft Hyper-V or Veeam deployments. It helps you to gain better visibility and valuable business insights.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now