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JoernSchoenyan/check-mail.sh

Last active June 25, 2020 08:58
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check-mail.sh
#!/bin/bash
MEIN_HOSTNAME=
MAILADRESSE=
data=`echo | openssl s_client -servername $MEIN_HOSTNAME -connect $MEIN_HOSTNAME:993 2>/dev/null | openssl x509 -noout -dates | grep notAfter | sed -e 's#notAfter=##'`
ssldate=`date -d "${data}" '+%s'`
nowdate=`date '+%s'`
diff="$((${ssldate}-${nowdate}))"
if test "${diff}" -lt "$((7*24*3600))";
then
if test "${diff}" -lt "0";
then
echo "Das Zertifikat für unseren Mailserver ist abgelaufen!" | /usr/sbin/sendmail $MAILADRESSE
else
echo "Das Zertifikat fuer unseren Mailserver laeuft in $((${diff}/3600/24)) Tagen ab!" | /usr/sbin/sendmail $MAILADRESSE
fi
fi
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