Summary
spamfilter1.nachnet.com has one IP number , via cname to
smtpbackup.mailwise.com , but the reverse is
mx3.electric.net.
mx3.electric.net,
mail2.racohen.com,
bocl.net.mx2.electric.net,
filter2.ultracomputing.com,
virtgate.ca.mx2.electric.net and at least two other hosts point to the same IP.
iccdc.com,
nachnet.com,
thehousedc.org,
davenetworks.com and
carepharmacies.com use this as a mailserver.
nachnet.com is a domain controlled by two nameservers at
geekhosting.com. They are on the same IP network. Incoming mail for
nachnet.com is handled by two mailservers at
nachnet.com themselves. They are on different IP networks.
nachnet.com has one IP number , but the reverse is
tazer.rdns.net.
spamfilter1.nachnet.com is hosted on a server in Canada.