This letter gives a huzzah to someone who has just scored in the job market.
1234, Main Street
Boston, MA 02123
07 April, 2005
<Recipient Address Goes Here>
I just heard about your new job at <company name>, and I wanted to offer my congratulations. I know how much this job means to you and how hard you've worked to make it happen. I hope this job proves beneficial not only to your career, but to your well being in general. Few things in life are as important as liking what we do for a living. May your new job be both challenging and rewarding.
Congratulations once again!
encl: <List of enclosed items goes here>