High Quality Content by WIKIPEDIA articles! YAM (short for Yet Another Mailer) is a MIME-compliant e-mail client written for AmigaOS based computers. It supports multi-POP3, APOP, SMTP, TLSv1/SSLv3, multiple users, PGP, unlimited hierarchical folders, filters, a configurable GUI (based on MUI) and an ARexx interface and many other features which are common for Mail User Agents (MUA) today.