When you use Telnet to connect to the Simple Mail
Transfer Protocol (SMTP) service of a Windows 2000-based server (regardless of
whether it is running Exchange 2000), the following banner is displayed:
220 hostname.domain.com Microsoft ESMTP MAIL Service, Version:
5.0.2195.2966 ready at
This may be an issue if you do not want the version of
the SMTP service that is running on your server to be displayed. To remove the
version information from the Windows 2000 SMTP banner, follow these steps:
- Download the IIS metabase editor - Version 2.2 of the IIS metabase editor
can be downloaded from
http://support.microsoft.com/support/kb/articles/Q232/0/68.ASP
- Using the IIS metabase editor select the following key
Lm\Smtpsvc\virtual server
number
Note: Normally it will always be
lm\Smtpsvc\1
- Click Edit, click New, and then click String.
- Verify that the entry in the ID box is Other, and then type
36907 (decimal) on the right side of the ID box.
- In the Value box, type the banner that you want to be displayed.
- Stop, and then restart the SMTP virtual server or the SMTP service.
To confirm that the banner has been changed, telnet to port 25 of the virtual
server (the default setting). The "ESMTP MAIL Service, Version: 5.0.2195.1600"
banner should no longer be displayed.
NOTE: The fully qualified
domain dame (FQDN)(as it was entered in the SMTP service properties) and the
date and time are still displayed. The following text is an example of modified
banner:
220 ccrowe.adrock.co.nz Welcome
to my SMTP Server Sat, 29 Sep 2001 06:54:38 +1200
- End -