Summary
Incoming mail for
ww.att.com is handled by three mailservers having a total of eight IP numbers. There are six duplicated IP numbers. Some of them are on the same IP network.
att.com,
sbc.com,
cerf.net,
snet.com,
ptss.com and at least 37 other hosts share mailservers with this domain.
att.com is a domain controlled by three nameservers at
attdns.com. All of them are on different IP networks. Incoming mail for
att.com is handled by three mailservers having a total of eight IP numbers. There are six duplicated IP numbers. Some of them are on the same IP network.
att.com has two IP numbers. They are on different IP networks.