Email Contacts Issue

Posted on 2008-10-22
Last Modified: 2010-04-07
Can contacts primary or secondary SMTP Addresses be changed via Recipient Policies without affecting normal users with mailboxes?

My problem is that there is tons of contacts that are having issues with duplicate SMTP Addresses as our valid users with mailbox accounts.

This is causing 5.1.0 NDR Messages. We think a script was ran to do this because Exchange does not allow you to get away with creating a contact with the same email address as a mailbox account.

Any ideas let me know. Thanks a bunch everyone
Question by:snyderkv
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
  • 6
  • 3
LVL 15

Expert Comment

ID: 22776148
You would have to create a custom Recipient Policy to update the contacts only, but this would add to the existing addresses and not delete the existing duplicates. You will need to find the duplicates and change them.
LVL 15

Expert Comment

ID: 22776248
Check the following link for other ways of identifying the duplicates::

Author Comment

ID: 22777297
Yes but please show me how to find dups

a qwery isnt helping me. maybe im doing it wrong
Are your AD admin tools letting you down?

Managing Active Directory can get complicated.  Often, the native tools for managing AD are just not up to the task.  The largest Active Directory installations in the world have relied on one tool to manage their day-to-day administration tasks: Hyena. Start your trial today.


Author Comment

ID: 22777312
ah gotcha

Author Comment

ID: 22780059
Ah article was difficult to understand. I don't think it applies to my situation.
LVL 15

Accepted Solution

fishadr earned 500 total points
ID: 22781021
If you have got duplicate e-mail addresses in your infrastructure there are three ways to remove these

1) Write a script in Perl or VBScript (or something else) to search all the objects with e-mail addresses to check which ones have duplicate addresses and then manually change them as required

2) Manually check all the objects and fix as required. Duplicate e-mail addresses will be logged in the Event viewer when e-mails are sent to users with duplicates

3) Use LDIFDE as per the article to extract the information and sort (this way is simpler if you do not have the time to develop a script to do the work)

Try the following - it is a explained in a much easier format:


Author Comment

ID: 22783452
Sweet I will save the LDIFDE link for later. I may still need to use it.

What I did was make a query for contacts proxy addresses and one for users. I'm downloading a doc compare tool right now so it can highlight the difference.

Thanks a bunch

Author Comment

ID: 22783547
Read the document.

Here is the problem with all these links. None of them show how to search ALL objects and spit out duplicates.

I'm sure I will need a script to do this.

Thanks guys

Author Comment

ID: 22784233
Ah ok I did a query and queried for exchange recipients, contacts, proxyaddresses value SMTP:*@Domain.Com* and did the same for users

Then I exported the list and ran a compare doc utility from the net.


Featured Post

Backup Solution for AWS

Read about how CloudBerry Backup fully integrates your backups with Amazon S3 and Amazon Glacier to provide military-grade encryption and dramatically cut storage costs on any platform.

Question has a verified solution.

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

Suggested Solutions

Follow this checklist to learn more about the 15 things you should never include in an email signature from personal quotes, animated gifs and out-of-date marketing content.
MS Outlook is a world-class email client application that is mainly used for e-communication globally.  In this article, we will discuss the basic idea about MS Outlook, its advanced features, and types of MS Outlook File formats.
In this video we show how to create a Resource Mailbox in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: Navigate to the Recipients >> Resources tab.: "Recipients" is our default selection …
This video discusses moving either the default database or any database to a new volume.

740 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