#!/usr/bin/python3
#
# Univention Monitoring Plugin
#  check_univention_smtp: check smtp status
#
# SPDX-FileCopyrightText: 2007-2025 Univention GmbH
# SPDX-License-Identifier: AGPL-3.0-only

from univention.config_registry import ucr
from univention.monitoring import Alert


class SMTP(Alert):

    def write_metrics(self):
        address = '%(hostname)s.%(domainname)s' % ucr
        if ucr.get('mail/postfix/inet/interfaces') == '127.0.0.1':
            address = '127.0.0.1'
        rc, output = self.exec_command(['/usr/lib/nagios/plugins/check_smtp', '-H', address])
        self.write_metric('univention_smtp_reachable', 1 if rc == 0 else 0)
        self.log.debug(output)


if __name__ == '__main__':
    SMTP.main()
