x-client with SMTP

We would like to use x-client with the smtp protocol with haproxy.

I know that the equivalent is possible with HTTP in haproxy, but is this possible with SMTP? If not, does anybody have an idea as to how complex of an undertaking this might be to add to haproxy?

(For an example of X-client with SMTP, see:   http://www.postfix.org/XCLIENT_README.html )

Thanks!

Eric

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Eric Schwab
Internet Integration, Inc.
http://www.i-3.com
Tel: 310-571-3200
Fax: 310-571-3434