When I receive a large gift donation notification, I send the donaor a handwritten note thanking them.  The notification tells me the amount, donor name, and their email.  I then have to go in and look up the donor to get their email.  I understand that I could run a report weekly or daily for this info, but it is just easier to do theletter when I get the email or kep the email in my Inbox until I get time to do it as a reminder.  If you're pulling email, surely it cannot be too hard to pull mailing address too.