sendmail.opensmtpd man page

sendmail — a mail enqueuer for smtpd(8)


sendmail [-tv] [-F name] [-f from] to ...


The sendmail utility is a local enqueuer for the smtpd(8) daemon, compatible with mailwrapper(8). The message is read on standard input (stdin) until sendmail encounters an end-of-file. The sendmail enqueuer is not intended to be used directly to send mail, but rather via a frontend known as a mail user agent.

Unless the optional -t flag is specified, one or more recipients must be specified on the command line.

The options are as follows:

-F name
Set the sender's full name.
-f from
Set the sender's address.
Read the message's To:, Cc:, and Bcc: fields for recipients. The Bcc: field will be deleted before sending.
Enable verbose output.

To maintain compatibility with Sendmail, Inc.'s implementation of sendmail, various other flags are accepted, but have no effect.

Exit Status

The sendmail utility exits 0 on success, and >0 if an error occurs.

See Also

smtpctl(8), smtpd(8)


OpenSMTPD is primarily developed by Gilles Chehade, Eric Faurot, and Charles Longeau, with contributions from various OpenBSD hackers. It is distributed under the ISC license.

This manpage was written by Ryan Kavanagh <Mt rak@debian.org> for the Debian project and is distributed under the ISC license.


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