Sending mail from a Bash shell script

Question

I am writing a Bash shell script for Mac that sends an email notification by opening an automator application that sends email out with the default mail account in Mail.app. The

Answer 1

Probably the only way you could do this, while keeping the program self-sufficient, is if you have direct access to an SMTP server from the clients.

If you do have direct access to an SMTP server you can use the SMTP example from wikipedia and turn it into something like this:

#!/bin/bash
telnet smtp.example.org 25 <<_EOF
HELO relay.example.org
MAIL FROM:
RCPT TO:
DATA
From: Joe 
To: Jane 
Subject: Hello

Hello, world!
.
QUIT
_EOF

To handle errors I would redirect the output from telnet to a file and then grep that for a "success message" later. I am not sure what format the message should be, but I see something like "250 2.0.0 Ok: queued as D86A226C574" in the output from my SMTP server. This would make me grep for "^250.*queued as".