The letters area can be found off the Letters menu item.
First Letter
The intention of the First Letter is to communicate your project to the families and their usernames and passwords, hence these letters will be unique for each family. Note that it is common to send out a First Email instead of a first letter, but you'll do what's best for your community. There are variations on the First Letter: Some choose to offer a simple postcard with a label including the username and password, while others prefer a more formal letter. Comsend offers a standard format as well as a Mail Merge option, which allows you to print your First Letter in any format you choose. The First Letter will typically be included with a Family List in a combine mailing (also referred to as the First Mailing).
Final Letter
The Final Letter is, in many ways, the ultimate deliverable from Comsend. The letter includes a salutation to each family along with a list of families that send their greetings, and the greetings themselves. As with the First Letter, the Final Letter can be produced in a standard format from Comsend, or through your own Mail Merge (e.g. using Microsoft tools).