mx2.imc-hosting.com has no TXT records.
Question and response
Question
dig mx2.imc-hosting.com. TXT
Answer
The response has no answer records.
Authority
imc-hosting.com. 300 SOA ns1105.ui-dns.de. hostmaster.kundenserver.de. 2014011019 28800 7200 604800 300
Additional
. 0 OPT ; payload 1220, xrcode 0, version 0, flags 0