extsmail(1)
robust sending of e-mail to external commands
SYNOPSIS
extsmail
[options ...
]
DESCRIPTION
extsmail
masquerades as the standard UNIX
sendmail(1)
when messages are sent; effectively, it notes the command line switches passed to
it, and puts those, and the message contents read from stdin, into a file in
a spool directory for later sending with
extsmaild(1).