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

x
?
Solved

bouncing emails - exchange server 2003

Posted on 2006-04-07
6
Medium Priority
?
296 Views
Last Modified: 2010-03-19
Hi,

I'm having a problem with my exchange servers.  We have 2 branches, each with Windows SBS 2003.  Each branch has Exchange Server SP1 installed and they both have a sperate mailbox account where they pop emails from.  For example BranchA gets emails from mailboxA and BranchB gets emails from mailboxB.

Now, if someone from outside like yahoo sends an email to an alias at BranchA and to an alias at BranchB, then both mailboxA and mailboxB get the email.  (Which is right).  The exchange server in BranchA downloads the email and sends it to the user but then it see's the alias for BranchB in the TO: field and hence sends the email back out.  Which then goes to mailboxB ready for BranchB to download it.  And at the same time, BranchB does the samething.  So now, mailboxA and mailboxB both have the emails again.  I installed a pop3 connector that deletes duplicate emails so users don't get the duplicate emails.

But the problem is, that the two servers keep sending the emails to each other until the user who sent the email out gets the following error message:

554 5.4.6 Too many hops 27 (26 max)

Is there anyway I can stop the exchange servers from doing that?  Also the domains for each branch is the same.  e.g abc@super.com (BranchA) , zxy@super.com (BranchB).

~Wild.
0
Comment
Question by:wildasIwanabe
  • 2
  • 2
5 Comments
 
LVL 104

Expert Comment

by:Sembee
ID: 16405271
The obvious way is to ditch the POP3 connector.
POP3 connectors can't cope with multiple sites on the same domain very well.

I would get all email delivered to one site by SMTP and then get the email forwarded to the other site via mail enabled contacts and a dummy domain. Configure both sites with mail enabled contacts for the other site and you can have both on the MX records backing each other up.

By using mail enabled contacts instead of the "forward all unresolved email to:" option, you can use the filter unknown recipients which cuts down on large number of junk email messages.

Simon.
0
 

Author Comment

by:wildasIwanabe
ID: 16429741
Hey Simon,

I setup it so all emails BranchA (xxx@super.com) and then Branch A forwards the emails to mail enable contact in BranchB.  (xxx@ccc.super.com).  Both sites have mail enabled contacts for the other side.  But I'm still having the same problem.

If someone sends an email to a contact in BranchA and BranchB then the emails all go to BranchA and then the email for the contact in BranchB is forward to him.  Once the exchange server in BranchB picks up the emails, it sees the contact for BranchA in the TO: field so sends it back to BranchA.  And then the looping begins.

The emails are sent back an forth unti the "Too many hops" error message is generated. :(
0
 
LVL 104

Expert Comment

by:Sembee
ID: 16435281
That is the problem with the POP3 connector. It is basically a heap of junk that cannot cope with multiple sites sharing the same domain. My suggestion above about using the contacts was reliant on the POP3 connector being removed.

Simon.
0
 

Author Comment

by:wildasIwanabe
ID: 16446843
Hey Simon,  

I managed to fix this problem.  I created a text file with a list of names that the POP3 connector checks and only accepts emails that are sent to people that are in that list.

Each branch has its own list...

Thanks for your help anyway.

Metesh.
0
 

Accepted Solution

by:
GranMod earned 0 total points
ID: 16796601
PAQed with points refunded (250)

GranMod
Community Support Moderator
0

Featured Post

How to Use the Help Bell

Need to boost the visibility of your question for solutions? Use the Experts Exchange Help Bell to confirm priority levels and contact subject-matter experts for question attention.  Check out this how-to article for more information.

Question has a verified solution.

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

During and after that shift to cloud, one area that still poses a struggle for many organizations is what to do with their department file shares.
Unable to change the program that handles the scan event from a network attached Canon/Brother printer/scanner. This means you'll always have to choose which program handles this action, e.g. ControlCenter4 (in the case of a Brother).
If you're a developer or IT admin, you’re probably tasked with managing multiple websites, servers, applications, and levels of security on a daily basis. While this can be extremely time consuming, it can also be frustrating when systems aren't wor…
Monitoring a network: why having a policy is the best policy? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the enormous benefits of having a policy-based approach when monitoring medium and large networks. Software utilized in this v…

810 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