Blacklist Check 66.87.2.238 (66-87-2-238.pools.spcsdns.net)

Checking 66.87.2.238 (66-87-2-238.pools.spcsdns.net). Please wait a minute for the checks to complete.

Blacklist Status

access.redhawk.org	b.barracudacentral.org	bl.csma.biz
bl.emailbasura.org	bl.spamcannibal.org	bl.spamcop.net
bl.technovision.dk	blackholes.five-ten-sg.com	blackholes.wirehub.net
blacklist.sci.kun.nl	block.dnsbl.sorbs.net	blocked.hilli.dk
cart00ney.surriel.com	cbl.abuseat.org	dev.null.dk
dialup.blacklist.jippg.org	dialups.mail-abuse.org	dialups.visi.com
dnsbl.ahbl.org	dnsbl.antispam.or.id	dnsbl.cyberlogic.net
dnsbl.kempt.net	dnsbl.njabl.org	dnsbl.sorbs.net
dnsbl-1.uceprotect.net	dnsbl-2.uceprotect.net	dnsbl-3.uceprotect.net
duinv.aupads.org	dul.dnsbl.sorbs.net	dul.ru
escalations.dnsbl.sorbs.net	fl.chickenboner.biz	hil.habeas.com
http.dnsbl.sorbs.net	intruders.docs.uu.se	korea.services.net
mail-abuse.blacklist.jippg.org	misc.dnsbl.sorbs.net	msgid.bl.gweep.ca
new.dnsbl.sorbs.net	no-more-funn.moensted.dk	old.dnsbl.sorbs.net
pbl.spamhaus.org	proxy.bl.gweep.ca	psbl.surriel.com
pss.spambusters.org.ar	rbl.schulte.org	rbl.snark.net
recent.dnsbl.sorbs.net	relays.bl.gweep.ca	relays.bl.kundenserver.de
relays.mail-abuse.org	relays.nether.net	rsbl.aupads.org
sbl.spamhaus.org	smtp.dnsbl.sorbs.net	socks.dnsbl.sorbs.net
spam.dnsbl.sorbs.net	spam.olsentech.net	spamguard.leadmon.net
spamsources.fabel.dk	tor.ahbl.org	web.dnsbl.sorbs.net
whois.rfc-ignorant.org	will-spam-for-food.eu.org	xbl.spamhaus.org
zen.spamhaus.org	zombie.dnsbl.sorbs.net	bl.tiopan.com

via whatismyipaddress.com

Blacklist Check
Check to see if your IP addresses are listed with nearly 70 DNS based anti-spam databases! Will your mail server be blocked by DNSbl filters?

Probably the most common way of detecting spam is rejecting mail that comes from mail servers known (or believed) to send spam. This is done by taking the IP address of the remote mail server, converting it to a domain name using the ip4r format (a.b.c.d becomes d.c.b.a.lookupzone.com), and doing a lookup to check if that IP address is listed in one of the databases.

Just because the IP is listed with a particular blacklist does not mean that you are sending spam, just that particular blacklist suggests not to accept mail directly from that IP address. Most residential Cable/DSL IP addresses that are dynamically assigned will indicate that they are blacklisted, meaning you should be sending from your ISP's mail server, not a mail server running on your own internet connection.

If you have questions or would like to discuss DNS based blacklists please visit the DNS based Blacklists Forum.

FAQ: What is a DNSBL?