No, you can't suppress these identification items. In actual fact, you wouldn't achieve much even if you could do this - all mail servers have "fingerprints" that are easy enough to track: variations in error strings, responses to different commands and so on.

The version information in the Received: header is very useful to me when doing support and maintenance, and I would be reluctant to remove it.

Cheers!

-- David --

Dear Mercury support, 

Just upgraded for security reasons from 4.10 to 4.52, everything seems to work great!
In general it is wise to hide make/version of one's MTA, to make things for crackers a bit more difficult.
So, I have adapted my smtp greeting as you can see in the snippet below:


220 myhost.mydomain.my ESMTP server ready.

However, at least two other places remain where evidence of mercury is still shown:

1) After typing help command the term 'Maiser' is shown, that's a clear indication of Mercury:

help

214-Recognized SMTP commands are:

214-   HELO   EHLO   MAIL   RCPT   DATA   RSET

214-   AUTH   NOOP   QUIT   HELP   VRFY   SOML

214 Mail server account is 'Maiser'.

Can the last line be altered/removed?

2) Received headers in mail sent out still have ... by myhost.mydomain.my (Mercury/32 v4.52) with ESMTP ...

Can the MTA identification string be altered?

 
Regards, mel.