#!/bin/sh

pre_install() {
	# Create mail group if it doesn't exist
	if ! getent group mail > /dev/null 2>&1; then
		addgroup -S mail
	fi

	# Create exim system user if it doesn't exist
	if ! getent passwd exim > /dev/null 2>&1; then
		adduser -S -D -H \
			-h /var/spool/exim \
			-s /sbin/nologin \
			-G mail \
			-g "Exim Mail Transfer Agent" \
			exim
	fi
}
