Do not sent multiple emails to the same address
I use this app to send emails after a form has been filled out. A single individual can, and may need to, fill out the form multiple times. Currently, the app sends multiple emails to the same email address... 5 or 6 in some cases, depending upon the number of times someone had to fill out a form. SO it would be great if the app could check email addresses to which is has already sent the merge and skip lines if it is a duplicate email address.
This will be very helpful.