Hi leilers,
In Word, userforms are a particular kind of form that typically looks vaguely like a Word dialogue box. Since you posted in 'UserForms', I understood that to be what you have, in which case, you'd also have known how to use the vba (macro) statement 'ActiveDocument.SendMail' .
So perhaps we'd better start from first principles: What kind of form are you using? For example a document with formfields, a document with content controls, a document with a userform, a document with ActiveX controls.
Whatever kind of document is is, you'll need some vba (macro) code to automate the emailing. Aside from the basic 'ActiveDocument.SendMail' line I suggested, a fully-fledged macro might look something like the one here:
https://www.msofficeforums.com/vba/1...a-outlook.html