webmail.asu.edu has one IP number , which is the same as for asu.edu. webmail.asu.edu also has a corresponding reverse pointer. asu.edu, my.asu.edu, ub.asu.edu, bll.asu.edu, bna.asu.edu and at least 100 other hosts point to the same IP. asu.edu is delegated to four nameservers, however five extra nameservers are listed in the zone. Some of them are on the same IP network. Incoming mail for asu.edu is handled by one mailserver at asu.edu themselves. webmail.asu.edu is hosted on a server in United States.