Summary
Incoming mail for
hosted-by.irbs.com is handled by one mailserver having a total of three IP numbers. All of them are on the same IP network.
xmy.ca,
sjk.us,
ii.com,
mpp.org,
ion1.com and at least 100 other hosts share mailservers with this domain.
irbs.com is a domain controlled by two nameservers at
irbs.net. They are on different IP networks. Incoming mail for
irbs.com is handled by two mailservers having a total of four IP numbers. All of them are on the same IP network.
irbs.com has one IP number.