Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

Emails cannot be sent to Users with same domain.

Posted on 2014-04-17
2
Medium Priority
?
320 Views
Last Modified: 2014-05-01
HI
I have a Small Business Server 2003 which has been working absolutely fine for years.

There are a couple of users who work remotely and although they have the company email address they don't have an account on the exchange server.

It has always been possible to send emails form internally to the external users eventhough they have the same domain. This was achieved deselecting "this exchange organisation is responsible for all mail delivery to this address" in the Default Policy.

Over the last couple of days this is now not possible and if an email is sent form the internal user to the external user they receive a message:

The following recipient(s) cannot be reached:
      'mark@washstation.co.uk' on 17/04/2014 13:30
            The e-mail account does not exist at the organization this message was sent to.  Check the e-mail address, or contact the recipient directly to find out the correct address.
            <washstation.co.uk #5.1.1>


Please help as I have checked all settings and can see no reason why this has stopped working.
0
Comment
Question by:JayHine
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 63

Accepted Solution

by:
Simon Butler (Sembee) earned 2000 total points
ID: 40006732
I don't think that is an Exchange error. Therefore it is most likely an error with the ISP, particularly if you haven't changed anything. I would check the DNS records etc to verify everything is correct.

You should really have some additional steps to what you have done as well - they are outlined in this KB article:
http://support.microsoft.com/kb/321721

Simon.
0
 

Author Closing Comment

by:JayHine
ID: 40036467
Thanks. I had to "allow the server to relay" for it to start working. The thing I don't really understand is that it worked for years without this ticked and just stopped working.

The server is using POP3 connector to collect emails so I have closed smtp on Routing and Remote Access to stop any attacks using smtp.

Thanks for your help.
0

Featured Post

Free learning courses: Active Directory Deep Dive

Get a firm grasp on your IT environment when you learn Active Directory best practices with Veeam! Watch all, or choose any amount, of this three-part webinar series to improve your skills. From the basics to virtualization and backup, we got you covered.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I don't pretend to be an expert at this, but I have found a few things that are useful. I hope that sharing them here will help others, so they will not have to face some rather hard choices. Since I felt this to be a topic of enough importance and…
The main intent of this article is to make you aware of ‘Exchange fail to mount’ error, its effects, causes, and solution.
how to add IIS SMTP to handle application/Scanner relays into office 365.
This video shows how to quickly and easily add an email signature for all users on Exchange 2016. The resulting signature is applied on a server level by Exchange Online. The email signature template has been downloaded from: www.mail-signatures…
Suggested Courses

618 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