Changing the POP3 Banner in Exchange Server
January 30 2008
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 POP3 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:
Using a metabase editing tool such as MetaEdit or Metabase Explorer, locate the following file:
Lm\POP3SVC\<virtual server number>
Click Edit, click New, and then click String Record.
Verify that the entry in the ID box is Other, and then type 41661 (decimal) on the right side of the ID box.
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.
Stop, and then restart the POP3 virtual server or the POP3 service.
To confirm that the banner has been changed, telnet to port 110 of the virtual server (the default setting).