b2b.salzburgerland.com has no MX records.
Question and response
Question
dig b2b.salzburgerland.com. MX
Answer
The response has no answer records.
Authority
salzburgerland.com. 86400 SOA adns001.dc1.conova.com. domainadmin.conova.com. 2026020901 10800 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0