What I think Srinivas wants to do is hide the sending account email address. Which I think can be done with one of the blat options, either -from or -sender I guess. But I don't understand what this will achieve. All emails always contain the source email address account name, and so hiding the true originating email address behgind a "display name" isn't going to stop any sniffers for determining the true email adress anyway. IMO, personally, I wouldn't bother. If the email is going out plain text over the internet, then there's not a lot anyone can do to hide the contents.
There is a third party tools called 'stunnel' which can be used to send emails from Windows via SSL to a receiving SMTP host. I'll see if I can find the link where I've previously posted how to use it.
