Solved

Error MSExchangeTransport event ID 3020

Posted on 2007-11-20
4
1,489 Views
Last Modified: 2009-07-24
Now I'm facing this error in Exchange. Any help would be very appriciate
Source: MSExchangeTransport

Category: NDR

Event ID 3020
 
 

Cause: A forward loop was detected by the categorizer. This is a common hosting configuration problem caused when someone uses the provisioning tool to create a contact in one organization unit and creates a user in a different organization user that share the same e-mail address.    

Solution: Verify that you do not have a user in organizational unit and a contact in a different organizational unit that have the same e-mail address. 
 

For more information, see Help and Support Center at

Open in new window

0
Comment
Question by:icic-dcic
  • 2
4 Comments
 
LVL 23

Expert Comment

by:debuggerau
ID: 20325580
Do you know where to look in Active Directory to check email addresses?
Did you get another error in the event log to point out the offending entry?

0
 

Author Comment

by:icic-dcic
ID: 20326083
I know where to look in Active Directory to check email address. that is Properties account and see it in General tab. Is it right? And I just get that error. and sometime i get event error 1023 POP3SVC

Source: POP3SVC

Category: Content Engine

Event ID: 1023

Error 0x7d6 occurred while rendering message 0001-000000086a54 for download for user minhduc.le@icic.vn. 
 

For more information, click http://www.microsoft.com/contentredirect.asp. 

Open in new window

0
 
LVL 23

Accepted Solution

by:
debuggerau earned 500 total points
ID: 20332384
I'd doubt these errors are related, however the POP3SVC might be from Virus protection or connections dropping, shouldn't happed often though.

OK, assuming you have a AD integrated exchange server, the email addresses are in
Active Directory Users and Computers -> Users -> Select User
Select the tab marked 'E-mail Addresses' and they will be listed below.

To check the contacts, just select a contact rather than a user above...

Now, the server is complaining that an email is used twice in a forest, but in a different container.
Without seeing your AD setup, I cant know how complex it will be to find, you may need some tools or scripts to report on the email addresses used.

Checkout scriptomatic at the scripting center, they have some CDO scripts that will report email addresses.

Hope that helped.
Regards
Greg

0

Featured Post

Enterprise Mobility and BYOD For Dummies

Like “For Dummies” books, you can read this in whatever order you choose and learn about mobility and BYOD; and how to put a competitive mobile infrastructure in place. Developed for SMBs and large enterprises alike, you will find helpful use cases, planning, and implementation.

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.
This article aims to explain the working of CircularLogArchiver. This tool was designed to solve the buildup of log file in cases where systems do not support circular logging or where circular logging is not enabled
In this video we show how to create an email address policy in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.:  First we need to log into the Exchange Admin Center. Navigate to the Mail Flow…
The video tutorial explains the basics of the Exchange server Database Availability groups. The components of this video include: 1. Automatic Failover 2. Failover Clustering 3. Active Manager

864 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

21 Experts available now in Live!

Get 1:1 Help Now