| dnsbl.net.au | Helping you block invalid E-mail |
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SORBS is a very well maintained database, with extensive searching and scanning facilities for quickly locating and listing open proxies, and many other security affected servers.
What we believe is happening is that compromised end user client PC's, are being used to send spam through their upstream mail server, as they should be. However, when the spammer sends their spam to any of the sorbs spamtrap addresses, the result is that the compromised PC users ISP is listed on the sorbs spam zone.
Please see this sorbs page for more details.
using sorbs
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Sorbs Zones included in sorbs.dnsbl.net.au and aggregated into t1.dnsbl.net.au
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http.dnsbl.sorbs.net - List of Open HTTP Proxy Servers.
socks.dnsbl.sorbs.net - List of Open SOCKS Proxy Servers.
misc.dnsbl.sorbs.net - List of open Proxy Servers not listed in
the SOCKS or HTTP lists.
smtp.dnsbl.sorbs.net - List of Open SMTP relay servers.
web.dnsbl.sorbs.net - List of web (WWW) server which have spammer
abused vulnerabilities (e.g. FormMail scripts)
zombie.dnsbl.sorbs.net - List of networks hijacked from their original
owners. Some already used for spamming.
dul.dnsbl.sorbs.net - Dynamic IP Address ranges (NOT a Dial Up list!)
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spam.dnsbl.sorbs.net removed from all dnsbl.net.au zones, 05 Jan 2004.
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spam.dnsbl.sorbs.net - List of hosts that have been noted as sending
spam/UCE/UBE to the admins of SORBS. This
zone also contains netblocks of spam supporting
service providers, this could be for providing
websites, DNS or drop boxes for a spammer. Spam
supporters are added on a 'third strike and you are
out' basis, where the third spam will cause the
supporter to be blocked.
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Righ Hand Side format, not currently used within dnsbl.net.au
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rhsbl.sorbs.net - Aggregate zone (contains all RHS zones)
badconf.rhsbl.sorbs.net - List of domain names where the A or MX
records point to bad address space.
nomail.rhsbl.sorbs.net - List of domain names where the owners have
indicated no mail should ever be sent with these
domains.
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