Summary
Incoming mail for
cluster7b.us.messagelabs.com is handled by one mailserver at
messagelabs.com.
cluster7b.us.messagelabs.com has two IP numbers. They are on the same IP network.
cluster1a.eu.messagelabs.com,
cluster3a.eu.messagelabs.com,
cluster5a.us.messagelabs.com,
cluster2a.eu.messagelabs.com,
cluster6a.us.messagelabs.com and at least five other hosts point to the same IP and also shares mailservers.
mail2.wdmn.nl,
mail4.iata.org,
mail.vedior.nl,
mx2.startv.com,
mx2.s-r-a.co.uk and at least 47 other hosts point to the same IP.
att.com,
sbc.com,
snet.com,
acus.com,
ptss.com and at least 100 other hosts use this as a mailserver.
mail554.messagelabs.com,
cluster8a.us.messagelabs.com,
cluster9a.us.messagelabs.com,
cluster2a.us.messagelabs.com,
cluster1a.us.messagelabs.com and at least five other hosts share mailservers with this domain.
cluster7b.us.messagelabs.com is hosted on two servers in United States.