NAME

sendmail − send mail messages

SYNOPSIS

­sendmail [ ­recipient ...  ]

DESCRIPTION

­Sendmail sends mail to each ­recipient named as an argument. It reads its standard input to get the text of the message.  If no ­recipient is named, the recipient(s) will be taken from the message header. 

The mail message is scanned for lines beginning ‘From:’, ‘To:’ and ‘Cc:’. 
If no ‘from’ line is found, the sender is assumed to be the current user. The recipient(s) of the message can be mentioned as arguments or in a list of names in a ‘To:’ line but not as both.  If the sender’s name is unqualified (is just a user name), ­sendmail appends the value of the environment variable DOMAIN. 

­Sendmail delivers the mail using the module smtp(2), which connects to a mail server running the Simple Mail Transport Protocol (SMTP), using the symbolic host name ­$MAILSERVER (see db(6)).

SOURCE

­/appl/cmd/sendmail.b

SEE ALSO

smtp(2), db(6)

Plan 9  —  June 29, 2000