Summary
s5a1.psmtp.com has one IP number , which also has a corresponding reverse pointer.
ca.s5a1.psmtp.com,
org.s5a1.psmtp.com,
com.s5a1.psmtp.com,
edu.s5a1.psmtp.com,
com.mail1.psmtp.com and at least 100 other hosts point to the same IP.
bdd.com,
rbff.org,
fadaa.org,
bmsus.com,
uebiz.net and at least 100 other hosts use this as a mailserver.
ca.s5a1.psmtp.com,
cc.s5a1.psmtp.com,
tv.s5a1.psmtp.com,
bz.s5a1.psmtp.com,
au.s5a1.psmtp.com and at least 100 other hosts are subdomains to this hostname.
psmtp.com is a domain controlled by twelve nameservers. Some of them are on the same IP network. Incoming mail for
psmtp.com is handled by four mailservers. There are three duplicated IP numbers.
s5a1.psmtp.com is hosted on a server in United States.