E-mail History

If I send an email from a gallery, is there a place to view it? Or any kind of email history? Sometimes clients say they don't receive things so it would be nice to be able to look back and tell them exactly when I first emailed them. 

You can go to the People tab and look in the client's account to see a history of all emails that were sent to them. You can also go to the Stats tab > Email Logs drop down to see all emails that have gone out.
On both of these, if the email has been viewed, there will be a little eye icon and a number showing how many times the email has been viewed. If you hover on the eye icon it will tell you when the last view was.

Thank you!