postfix_add_email

#!/bin/sh
# Add Email to Postfix
# 08/19/17 - Created by Andrew Puckett

if [ $# -lt 2 ]; then
	echo "NAME"
	echo "	$(basename $0) options"
	echo
	echo "DESCRIPTION"
	echo "	$(basename $0) is used to add an email address to postfix. To login with gmail use mail.domain, full email address and the password generated by this script. Use TLS on port 587."
	echo
	echo "OPTIONS"
	echo "	-d"
	echo "	    Domain. Required."
	echo "	-e"
	echo "	    Email address (e.g. firstname). This will be forwarded to admin unless -f is used. Required."
	echo "	-i"
	echo "	    Don't setup sasl. Can be used if importing the user from the sasldb2 file."
	echo "	-f"
	echo "	    Forward the extra email address (e.g. example@gmail.com)."
	echo "	-p"
	echo "	    Create a new SMTP password for extra email address."
	echo
	echo "AUTHOR"
	echo "	Andrew Puckett"
	echo
	exit 1
fi

[ $(id -u) != "0" ] && echo "ERROR: You must be the superuser to run this script" >&2 && exit 1

DOMAIN=
EMAIL=
FORWARD=
CREATE_PASS=0
SASL=1

while getopts d:e:f:ip opt
do
	case "$opt" in
		d) DOMAIN=$OPTARG;;
		e) EMAIL=$OPTARG;;
		f) FORWARD=$OPTARG;;
		i) SASL=0;;
		p) CREATE_PASS=1;;
	esac
done

[ -n "$FORWARD" ] || FORWARD=admin@$DOMAIN

[ -f /etc/postfix/virtual ] && cat /etc/postfix/virtual > /etc/postfix/virtual_new
echo $EMAIL@$DOMAIN $FORWARD >> /etc/postfix/virtual_new
mv --backup=numbered /etc/postfix/virtual_new /etc/postfix/virtual
postmap /etc/postfix/virtual

[ $SASL -eq 0 ] && exit

if [ $CREATE_PASS -eq 1 ]; then
	PASS=$(openssl rand -base64 16 | tr / +)
	echo "####################################################################################################"
	echo $EMAIL@$DOMAIN password: $PASS
	echo "####################################################################################################"
else
	st=$(stty -g)
	#trap "stty $st; exit" HUP INT QUIT TERM
	stty -echo
	read -p "$EMAIL password: " PASS
	stty $st
	echo
fi

echo $PASS | saslpasswd2 -c -u $DOMAIN $EMAIL -p
cp /etc/sasldb2 /var/spool/postfix/etc/
chown postfix:postfix /var/spool/postfix/etc/sasldb2
service postfix restart
systemctl daemon-reload