sinkhole.std.org

Summary

sinkhole.std.org has one IP number , 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. www.zagreb.std.org use this as a mailserver. std.org is a domain controlled by two nameservers at directnic.com. They are on different IP networks. Incoming mail for std.org is handled by one mailserver at std.org themselves. std.org has one IP number.