MAPI Email problem

[jpBless]

I have automated VB6 application that sends email to to clients when
prompted by a user. The app uses MAPI client (using the default mail client
information to send the mail). After sending mail the email and attachments
gets added to SENT Folder of the mail client.

This app has worked well and still does for users using Outlook express.
However if the default client is Outlook Application a security
message/warning comes up warning the user "Unknown application is trying to
send messge..." and ask user to confirm and select profile etc... No matter
what the user does the app hangs. I have tried all I could and can't resolve
this problem... Has any one encountered and resolved this issue?

I have thought of using any VB6 method that could send email independent of
user's default email... But I am stomped too. The Sendmail.dll can't seem to
resolve the issue of sending mail using IMAP (like Gmail) settings..

In short I need your help. Thanks in advance.