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Exchange Server

Change the IMAP4 Banner

How can I change the IMAP4 banner seen when connecting to my Exchange server?

MS KB article 303513 has more:

When you connect to an Exchange 2000/2003 server with the Internet Message Access Protocol (IMAP) you receive a banner that is similar to the following:

​* OK Microsoft Exchange Server 2003 IMAP4rev1 server version 6.5.6944.0 (your_server_name) ready.

Note: The IMAP4 banner has another function. Read Remote Version Checking through SMTP/POP3/IMAP4.

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Note: You may also want to Change the POP3 Banner, Change the SMTP Banner or Change the Telnet Banner.

WARNING: If you use the ADSI Edit snap-in, the LDP utility, or any other LDAP version 3 client, and you incorrectly modify the attributes of Active Directory objects, you can cause serious problems. These problems may require you to reinstall Microsoft Windows 2000/2003 Server, Microsoft Exchange 2000/2003 Server, or both. Microsoft cannot guarantee that problems that occur if you incorrectly modify Active Directory object attributes can be solved. Modify these attributes at your own risk.

This may be an issue if you do not want the version of the IMAP4 service that is running on your server to be displayed. To remove the version information from the Exchange 2000/2003 POP3 banner, follow these steps:

Note: The following screenshots were taken on a Windows Server 2003 computer running Exchange 2003. I bet you can find your way on a similar W2K + E2K computer.

  1. Using a metabase editing tool such as MetaEdit or Metabase Explorer, locate the following file:
​Lm'IMAP4SVC'virtual server number
  1. Click Edit, click New, and then click String.

  1. Verify that the entry in the ID box is Other, and then type 49884 (decimal) on the right side of the ID box.

  1. In the Data box, type the banner that you want to be displayed. Or, if you’re using Windows Server 2003 and the IIS 6.0 version of Metaedit, double click the new value you’ve added and enter the text you want to be displayed.

  1. Stop, and then restart the IMAP4 virtual server or the IMAP4 service.
  2. To confirm that the banner has been changed, telnet to port 143 of the virtual server (the default setting). The original banner should no longer be displayed.

Related articles

You might also want to read the following related articles:


How to Modify the POP or IMAP Banner – 303513

How to Modify the SMTP Banner – 281224

MetaEdit 2.2 is available for download by clicking the following Microsoft link:

MetaEdit 2.2 (2.52mb)

Metabase Explorer 1.6 is a part of the IIS 6.0 Resource Kit which can be downloaded here:

IIS 6.0 Resource Kit Tools (6mb)

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