Summary
deneb.dfn.de has one IP number , which also has a corresponding reverse pointer.
gbf.de,
bsh.de,
edu.cn,
ufz.de,
dwd.de and at least 100 other hosts use this as a nameserver.
bfs.de,
cecode.de,
io.dfn.de,
han.dfn.de,
neo.dfn.de and at least 68 other hosts use this as a mailserver.
dfn.de is a domain controlled by five nameservers. Some of them are on the same IP network. Incoming mail for
dfn.de is handled by one mailserver having a total of three IP numbers. All of them are on the same IP network.
deneb.dfn.de is hosted on a server in Germany.