Error message when auto emailing

[Steve S]

I have an Access form cmd button that sends an email to the person whose
record is current on a form. this works great except fro the message that
interrupts the send process for every email. the message is: " A program is
trying to send e-mail on your behalf..... Do you wnat to continue? YES NO"

I can't tell if this message is from Access, MS Outlook, or XP but is there
a way to get rid of it?

this question will be posted to MS Access also.

Steve S