Jeralyn
Thank you for your question and welcome to ADHDCentral.com.
I am not aware of any programs that will give ou a pop up box to make you click again before the email is sent, but what a great idea that would be. I am sure many people other than your friend would benefit from such a program.
Please let me know if you find anything like this.
In the meantime, you may want to talk to your friend about cognitive-behavioral therapy where her or she could work on stop and think before acting.
Eileen