Yes you can trigger a submit to email data connection in a rule action on a
control.
Value changes, rule fires, email submit.
By standard functionality, the user would have to confirm the send of the
email.

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Clay Fox / Microsoft InfoPath MVP
www.InfoPathDev.com / The InfoPath Authority / Downloads, Samples, How-To,
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> I dont have access to a sharepoint server is it possible to automatically
> distribute an email based upon a field change in a form?
>
> Thanks