Summary
pop.celox.nl has one IP number , which is the same as for
celox.nl, but the reverse is
localhost.
ns4.de,
sunx.org,
cabi.net,
celox.nl,
jcaa.com and at least 100 other hosts point to the same IP.
celox.nl use this as a mailserver.
celox.nl is a domain controlled by three nameservers. Two of them are on the same IP network. Incoming mail for
celox.nl is handled by two mailservers having a total of five IP numbers. All of them are on different IP networks.