Handling address conflict emails in Exchange

Within a company or organization, the email address stored on the Exchange server should be unique. If two users have the same user name for the e-mail address, but the e-mail address is the same), all emails sent to these two users will be returned, and return a non-pass report NDR), telling you: the recipient address is unknown.

MSEXCH: IMS: Microsoft: testdomain: SERVER1 0 (000C0595) Ambiguous Recipient

As we all know, if you want to create an email recipient and assign it to an email that is already in use, the Exchange server will report an error that indicates a message conflict. If the error message is sent through SMTP, the system also records the event marked as 10000 and the error message in the event log.

However, there are some situations that may lead to the creation of emails with such address conflicts. In one case, the Administrator created an email with the same address on two different servers before the replication operation starts or completes. For example, the uniqueness of all e-mail addresses between two departments is not confirmed before the internal replication starts, after the result is copied, the email address conflict occurs.

To solve this problem, you must first export a global address list (GAL) from the server that generates the error log. This list should be one. CSV files, including email addresses, distribution lists, Custom Email recipients, and hidden objects. In the end, this hidden object is important because the system usually attaches an ambiguous email address to these hidden objects, such as steering gear.

Next. import a CSV file into a program that can recognize it, such as Microsoft Excel, a database management system, or an electronic tabulation software. If your global address list is large, I suggest you import it. CSV files are imported into a database, because the database is superior in processing a large amount of data and records ). Then sort the data records according to the e-mail address field, and you will see the records with the same e-mail address in pairs.

If the program supports (for example, Access or SQL Server), you can also use SQL query to find the mail records with the same address. The statement is as follows:

SELECT email_address FROM csv_export_table group by email_address having count (*)> 1

In this statement, email_address indicates the field name that contains the user's e-mail address, while csv_export_table indicates the name of the table stored after you import. CSV data to the database.