mail.4ph.com has one IP number , which also has a corresponding reverse pointer. uppv.com, phuk.com, cumee.com, grump.net, fadhli.com and at least 100 other hosts use this as a mailserver. 4ph.com is a domain controlled by two nameservers at 4ph.com themselves. They are on different IP networks. Incoming mail for 4ph.com is handled by one mailserver at cirn.net. 4ph.com has one IP number. mail.4ph.com is hosted on a server in United States.