Hello Everyone
If I'll configure my mail box some where and send an email via that application then Zimbra should make an entry for that in my Sentbox.
It seems like Zimbra web client and...

Yeah, thats really great idea.

Give me your Email address I'll send you a zimlet which will provide you proper conversion from Email to PDF.

You are talking about ZDC or zimbra web client?

Have you got the zimlet?

Here is just emaple, you can develop zimlet your own
com_zimbra_test1.prototype.init = function() {
//call this immediately after login to set new listner for SPAM button...

Well its a zimlet, how could I post it here. and this forum is not allowed me post any email address.

I think you will need to extend send button listener for that.