#!/bin/sh

{% if mail.overwrite_from_header %}
username="$(id -un 2> /dev/null || echo nobody)"

excepted=0

for excepted_user in {% for item in mail.overwrite_from_header_except_users %} {{ item|quote }} {% endfor %}; do
	if [ "$username" = "$excepted_user" ]; then
		excepted=1
		break
	fi
done

if [ "$excepted" = "0" ]; then
	export NULLMAILER_NAME="${username} on $(hostname -f)"
	export NULLMAILER_USER={{ mail.from.split('@')[0]|quote }}
	export NULLMAILER_HOST={{ mail.from.split('@', 1)[1]|quote }}
	export NULLMAILER_FLAGS=f
fi
{% endif %}

exec /usr/bin/nullmailer-inject-bin "$@"