Use &emailFrom=[[+field5]] as from email

[arnoldsp]

It is not possible to use the following syntax,
&emailFrom=[[+field10]]

See http://forums.modx.com/thread/79957/formz-emailtpl
It would be nice it this could be implemented.

[soydemadrid]

Hi I am also looking for a way to achieive this or at least an option so you can reply to an email and it will go back to the sender, not the website's email address.

I've posted the problem here: http://forums.modx.com/thread/95017/