Error in “From Email Address” field

Hi,
I use gmail account and this plugin runs well.
But I have detected the follow error:
In the field: “From Email Address” I have introduced the following:
noreply@mysite.com
But the mails sended to the users are with the “original address” (myaccount@gmail.com).
Is that an error? How can I solve that?
Thanks for your support.