mailer.ebit.at has no MX records.
Question and response
Question
dig mailer.ebit.at. MX
Answer
The response has no answer records.
Authority
ebit.at. 3600 SOA ns1.ebit.at. domains.ebit.at. 2026012914 1200 600 1209600 3600
Additional
. 0 OPT ; payload 1400, xrcode 0, version 0, flags 0