Loop through all recipients in the MailItem.Recipients collecito nand check
if Recipient.Resolved = true.

--
Dmitry Streblechenko (MVP)
http://www.dimastr.com/
OutlookSpy - Outlook, CDO
and MAPI Developer Tool
-
"Dhananjay" wrote in message
...
Hi,
I have added one button on ribbon viz. "Upload and Send" in ol 2007 /
vb 2005. When user will click on that button, I want to get
information about message like To, CC, body etc and upload that
information to web via web service & send it. But as uploading of mail
information is done before sending, if there are some problems while
sending like - "Could not resolve email address in To,CC" or problems
related to spell check etc, then I can not reverse the process of
uploading of mail.
Is there any way to check beforehand whether mail item is proper to
send or not? So that I could check this part before uploading.

Thanks,
D