212067232100.static.t-mobile.at has no MX records.
Question and response
Question
dig 212067232100.static.t-mobile.at. MX
Answer
The response has no answer records.
Authority
static.t-mobile.at. 3600 SOA ns1.t-mobile.at. webmaster.magenta.at. 2015012801 3600 600 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0