I need my phone ringing by next week.What I am looking for is a service that will allow me to send a typed letter with handwritten envelopes and handwritten signatures, and one customizable/mail merge field within my letter.

@Michael QuarlesI don't mind the getting a few angry calls if there are also a few deals to be had.However I do see the value in using a discreet zip letter over an oversized postcard for something this sensitive.How customizable are they?