As a Domino Administrator, you would like a way to remove the fields that report product and version information from SMTP message headers. In Domino 5.x, there is no way to strip this information from SMTP headers.
This issue has been addressed in Domino 6.0.
Changes implemented in Domino 6.0 now allow the removal of the Product version information from outbound SMTP messages. Specifically, the new NOTES.INI variable SMTPNoVersionInRcvdHdr=1 will eliminate the addition of Domino product release information from the Received header of the outbound SMTP message.
Received Header(s)
The Received headers contain the version of the SMTP servers that accepted a message. The information in this field is often very invasive and records not only the product being run, but also the IP address or the hostname of the SMTP server(s) that received the message.
NOTES.INI
SMTPNoVersionInRcvdHdr=<value>
Description: Use this setting to prevent Domino server product information from being disclosed in SMTP Received headers.
0 - Domino-generated SMTP Received header will contain Domino server product information, which includes the server version.
1 - Domino-generated SMTP Received header will not contain Domino server product information.
Default: In the absence of this setting, Received headers added by the Domino server will include product information such as the server version.