p4fd246cb.dip0.t-ipconnect.de has no MX records.
Question and response
Question
dig p4fd246cb.dip0.t-ipconnect.de. MX
Answer
The response has no answer records.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0