This manual from the PC Working Group of Rutgers University Libraries is designed to help computer users to use electronic mail through computer networks effectively. There are two sections: MAIL commands, and VAX commands. The MAIL commands section includes step by step instructions for addressing, sending files, reading files, replying, forwarding, and deleting messages. The VAX commands section provides instructions for editing files, sending and receiving files, interactive messages, uploading and downloading files, using Kermit and other communications software, downloading mail messages, setting passwords, and online documentation. Other helpful hints include commands and explanations for carbon copy, personal name, directory for mail, folders, data compression, signature file, and purging files. Appendices include mail, VAX, and MicroEmacs command summaries, as well as suggestions for creating a plan file. (DB)