Summary
mail.vmjk.dk has one IP number , but the reverse is
vm3.pi.dk.
pi.dk,
57.dk,
iaq.dk,
wxc.dk,
jll.dk and at least 93 other hosts point to the same IP.
vmjk.dk and
www.vmjk.dk use this as a mailserver.
vmjk.dk is delegated to two nameservers, however three extra nameservers are listed in the zone. All nameservers are at
pi.dk. Two nameservers have the same IP number. Some of them are on the same IP network. Incoming mail for
vmjk.dk is handled by one mailserver at
vmjk.dk themselves.
vmjk.dk has one IP number.
mail.vmjk.dk is hosted on a server in Germany even though the hostname implies Denmark.