/mini_sendmail

Forked from https://acme.com/software/mini_sendmail/

Primary LanguageC

mini_sendmail

Fork with minor modifications of official mini_sendmail (https://acme.com/software/mini_sendmail/).

Author of this repository is not related to Jef Poskanzer in any way.

Additional features/bugfixes of this fork

  • Fix sending e-mail to addresses in format Full Name <name@example.com>.
  • Support chroot jails without /proc and utmp (by using "app" instead of username upon failure to determine it).

Original README for mini_sendmail

 mini_sendmail - accept email on behalf of real sendmail
               version 1.3.7 of 03jul2014

mini_sendmail reads its standard input up to an end-of-file and sends a copy of the message found there to all of the addresses listed. The message is sent by connecting to a local SMTP server. This means mini_sendmail can be used to send email from inside a chroot(2) area.

See the manual entry for more details.

Files in this distribution:

README		this
Makefile		guess
mini_sendmail.c	source file
mini_sendmail.8	manual entry

To build: If you're on a SysV-like machine (which includes old Linux systems but not new Linux systems), edit the Makefile and uncomment the SYSV_LIBS line. Otherwise, just do a make.

After it's built, you must test it to make sure your local sendmail daemon is (a) running and (b) accepting local mail for delivery elsewhere. Here's what a successful test run might look like:

% echo 'Subject: test' | ./mini_sendmail -v jef@mail.acme.com
<<<< 220 gate.acme.com ESMTP Sendmail; Thu, 16 Dec 1999 17:17:37 -0800 (PST)
>>>> HELO localhost
<<<< 250 gate.acme.com Hello localhost [127.0.0.1], pleased to meet you
>>>> MAIL FROM:<jef@gate.acme.com>
<<<< 250 <jef@gate.acme.com>... Sender ok
>>>> RCPT TO:<jef@mail.acme.com>
<<<< 250 <jef@mail.acme.com>... Recipient ok
>>>> DATA
<<<< 354 Enter mail, end with "." on a line by itself
<<<< 250 RAA58877 Message accepted for delivery
>>>> QUIT
<<<< 221 gate.acme.com closing connection
%

And here's an unsuccessful run where there's no local sendmail daemon running:

% echo 'Subject: test' | ./mini_sendmail -v jef@mail.acme.com
./mini_sendmail: connect: Connection refused
%

Feedback is welcome - send bug reports, enhancements, checks, money orders, etc. to the addresses below.

Jef Poskanzer  jef@mail.acme.com  http://www.acme.com/jef/