Summary
sf.aer.com is a domain controlled by four nameservers. All of them are on different IP networks. Incoming mail for
sf.aer.com is handled by one mailserver at
aer.com.
aer.com share both nameservers and mailservers with this domain.
aph.org,
abtl.com,
adexa.com,
aestf.com,
advion.com and at least 27 other hosts share nameservers with this domain.
gaea.aer.com share mailservers with this domain.
aer.com is delegated to three nameservers, however one extra nameserver is listed in the zone. All of them are on different IP networks. Incoming mail for
aer.com is handled by one mailserver also at
aer.com.
aer.com has two IP numbers. They are on the same IP network.