s-nail: s-nail (mail sending and receiving utility) s-nail: s-nail: S-nail provides a simple and friendly environment for sending and s-nail: receiving mail. It is intended to provide the functionality of the s-nail: POSIX mailx command, but is MIME capable and optionally offers s-nail: extensions for line editing, S/MIME, SMTP and POP3, among others. It s-nail: divides incoming mail into its constituent messages and allows the s-nail: user to deal with them in any order. It offers many COMMANDS and s-nail: INTERNAL VARIABLES for manipulating messages and sending mail. It s-nail: offers simple editing capabilities, and increasingly powerful and s-nail: reliable non-interactive scripting capabilities.