#!/bin/sh

read -p "Betreff: " subject
read -p "Empfänger*inadresse: " to_address
read -p "Absender*inadresse: " from_address
date=$(date +'%a, %-d %b %Y %H:%M:%S %z')

/usr/sbin/sendmail $to_address <<MAIL_END
Subject: $subject
To: $to_address
From: $from_address
Date: $date

Dies ist eine Testnachricht
.
MAIL_END