mail.ssl-gesichert.at has no MX records.
Question and response
Question
dig mail.ssl-gesichert.at. MX
Answer
The response has no answer records.
Authority
ssl-gesichert.at. 3600 SOA ns1.domaintechnik.at. root.domaintechnik.at. 2025061701 10800 900 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0