There are numerous programs to do just that;
you should be able to find one to suit you here -
http://www.techsupportalert.com/
But remember, there are some folks - as myself - who can spot these
generic letters -
whether mailed or e-mailed - due to their impersonal approach.
I feel the same indifference toward companies who use mailing
labels
From the horse 'n buggy era gal