sendmail(1) General Commands Manual sendmail(1)

sendmail - sendmail emulator interface for nullmailer

sendmail [ flags ] [ recipients ] < message

This program is a front end program for nullmailer-inject and nullmailer-smtpd. It is used by programs that expect a sendmail interface for sending email. After parsing the command-line arguments, this program executes either nullmailer-inject or nullmailer-smtpd depending on the presence of the -bs option on the command-line. See the documentation for nullmailer-inject for details on how messages are reformatted and queued.

-B TYPE
-C FILE
-d DEBUG
-h COUNT
-i
-L TAG
-N DSN
-n
-O OPTION
-o OPTION
-p PROTOCOL
-q TIME
-R RETURN
-U
-V ENVID
-v
-X LOGFILE
Ignored for compatibility
-bm
Read mail from standard input (default).
-bp
List information about mail queue. This executes mailq.
-bs
Use the SMTP protocol on standard input and standard output. This executes nullmailer-smtpd.
-F ADDRESS
Sets the full name of the sender.
-f ADDRESS
Sets the envelope sender address.
-r ADDRESS
An alternate and obsolete form of the -f flag.
-t
Read message for recipients and ignore the command-line arguments.

mailq(1), nullmailer-inject(1), nullmailer-smtpd(1)