
	Where results make sense

Topic: Spam and Open Relay Blocking System

Related Topics

US Open

French Open

US Open tennis

Australian Open

US Open golf

open set

British Open

open content

Open Directory Project

chess openings

OC 135 Open Skies

In the News (Fri 10 Jul 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	University of New South Wales - - Mail Gateway - Spam and Viruses
		The system is made up of a number of servers in a load balanced, geographically redundant server farm.
		The spam tagging software is Spam Assassin which tags mail it identifies as spam.
		Spam Assassin uses a wide variety of local and network tests to identify spam signatures.
	www.its.unsw.edu.au /support/email/av_spam.html (532 words)

	SORBS (Spam and Open-Relay Blocking System)
		The Spam and Open Relay Blocking System (SORBS) was conceived as an anti-spam project where a daemon would check "on-the-fly", all servers from which it received email to determine if that email was sent via various types of proxy and open-relay servers.
		SORBS lists are used by their creators to block spam (and on occasion, unfortunately, real email) to SORBS itself and other domains where the SORBS administrators are in charge of running the email systems.
		If your mail to a domain that is not directly operated by SORBS was blocked due to the sending IP address being listed on SORBS, please remember that the owners of that domain have voluntarily made the choice to use SORBS data for spam blocking.
	www.au.sorbs.net (1116 words)

	Spam and Open Relay Blocking System - Wikipedia, the free encyclopedia
		SORBS (Spam and Open Relay Blocking System) is a controversial open proxy and open mail relay DNSBL.
		The Joey McNicol case was won as of October 20, 2002.
		Wide networks of computers sharing the same IP address using network address translation may also suffer, because if one mail server on the network gets infected by a virus, the whole NAT'd network (even thousands of computers, though usually limited to a small office or home) will be fllisted.
	en.wikipedia.org /wiki/Spam_and_Open_Relay_Blocking_System (470 words)

	UMACS Spam Filtering (Site not responding. Last check: 2007-10-03)
		Currently we are using blocklists maintained by http://www.spamhaus.org, and SORBS (Spam and Open Relay Blocking System) http://www.au.sorbs.net.
		This method is effective in eliminating most spam, although it by itself will not eliminate all spam.
		The second layer of SPAM prevention is a software package called Spamassassin http://spamassassin.apache.org/ with Pyzor.
	www.umacs.net /spam.html (234 words)

	Spam
		Pinpointing the origin of spam, a necessary step for effective law enforcement, is one of the thorniest problems, because of the mutability of message-header information and "relay raping," the practice of using open server relays to conceal the path of a message.
		We had to upgrade our system at one point because rapid growth had made mail delivery take a couple of minutes on average, and it caused bad publicity - a lot of users had a clear expectation that e-mail should be delivered in a few seconds and that if it didn't something was wrong.
		Like any other system, it has the potential for abuse but the beauty is the identity of the honeypot systems is kept secret, so it's very difficult for anyone other than spammers to exploit the network.
	www.softpanorama.org /Mail/spam.shtml (13616 words)

	DECLUDE
		The most common way of detecting spam is by using spam databases (fllists, sometimes incorrectly referred to as RBLs, since RBL is trademarked by MAPS) that list the addresses of mail servers known (or believed) to send spam.
		If you are concerned about large blocks, please use the ircbl.ahbl.org which is just the bare minimum dnsbl list with nothing but open proxies, open relays, comprimised machines, ddos drones, trojans.
		Lists IPs that have sent spam, that have no reverse DNS or are dialups or are open proxies or open relays.
	shopping.declude.com /articles.asp?id=97 (3584 words)

	SPAM
		Spam is getting out of hand and, with the exception of the EU, government legislation lags years behind.
		With all of this in mind, the IETF focused on stopping spam at the e-mail server and in particular honed in on preventing open relays.
		The most basic characteristic of spam message is the presence of thousands of thousands of duplicates.
	www.open-mag.com /features/Vol_39/spam/spam.htm (1979 words)

	easyDNS Support • Mail Filters
		These relays are, or are likely to be, used as conduits for sending unsolicited bulk email, also known as spam.
		The Spam and Open Relay Blocking System (SORBS) blocks email routed through hosts known to be compromised based on a list of servers.
		The DSBL lists contain the IP addresses of servers which have relayed special test messages to listme@listme.dsbl.org; this can happen if the server is an open relay, an open proxy or has another vulnerability that allows anybody to deliver email to anywhere, through that server.
	support.easydns.com /antispam/mail.filters (502 words)

	Anti-SPAM Techniques: Black Listing (RBL)
		open relays or hosts that were detected to spend undesired email, have no registered DNS record, etc.).
		Blocking emails relying on single DNS fllist criteria alone is not recommended by fllist operators, leading to errors and chaos in email communication.
		This paper (pdf) presents a preliminary evaluation of the responsiveness of fllists for a specific set of spamming IP addresses that are known to come from a spamming botnet that spreads via the "Bobax" vulnerability.
	stason.org /articles/technology/email/junk-mail/black_listing.html (742 words)

	Features
		SORBS is an acronym for "Spam and Open Relay Blocking System" although this is not strictly accurate since SORBS also lists Open Proxy servers and machines that appear to be hacked sources of spam.
		Pyzor is a collaborative, networked system to detect and block spam using identifying digests of messages.
		A third-party relay, also known as an "open relay" or "insecure relay", is a mail server that will route mail for any third party to any other third party, no questions asked.
	www.emailreach.com /demo.aspx (1740 words)

	I Hate Spam
		Spam is unsolicited bulk email (UBE) that you don't want, usually promoting dubious get rich quick schemes, or trying to sell you something you also don't want.
		System administrators with hundreds of users have different tools and methods, and can use filters that look at the entire contents of an email to help decide whether it is spam.
		There are lists of known spam relay sites (so you can block them) at MAPS www.mailabuse.org and elsewhere.
	www.ericlindsay.com /computer/spam.htm (1989 words)

	The SpamBouncer: Blocklists
		The AHBL open proxies blocklist lists IPs of computers that run open proxies, which can be used to send spam and hide the source of the spam from the recipient.
		The DSBL multi-stage open relays blocklist is more aggressive, mostly because blocking multi-stage open relays is more aggressive and more likely to result in false positives.
		The Spam and Open Relay Blocking System (SORBS) blocklists are among the most aggressive that the SpamBouncer supports.
	www.spambouncer.org /reference/blocklists.shtml (4093 words)

	Real time spam black lists (RBL)
		This page lists a number of spam fl lists that can be used to block spam from entering your mail server.
		IP addresses of servers which have relayed special test messages to listme@listme.dsbl.org; this can happen if the server is an open relay, an open proxy or has another vulnerability that allows anybody to deliver email to anywhere, through that server.
		With the declining effectiveness of other spam blocking techniques, SURBL lists are a refreshing and promising new approach in combating spam and phishing.
	www.email-policy.com /Spam-black-lists.htm (381 words)

	Spam block lists bombed to oblivion
		Other block lists, which are used by Internet service providers and businesses to filter out the majority of incoming spam before it reaches the end users, have come under siege from distributed denial of service (DDOS) attacks this summer.
		The block lists have alienated some in the Internet community by blocking users who have nothing to do with spam, either accidentally or, in the case of SPEWS, as a deliberate tactic aimed at pressuring Internet service providers to crack down on spammers on their networks.
		But the longtime spam fighter said he bears more of a grudge against big ISPs like ATandT and UUNet, because they are in a better position to halt the attacks.
	research.lifeboat.com /spam2.htm (1753 words)

	NTL email and SORBS (Spam and Open-Relay Blocking System) - Cable Forum
		Not the best solution I agree, however it does catch a serious amount spam, for example prior to ntl launching their Brightmail spam filtering system, they were blocking a massive amount of connections to their mailserver, using SORBS and Spamhaus.
		Its a sledge hammer to crack a nut, but overall the system works, and appears to be the best option out there.
		As for the second comment, I also read somewhere that it may not be the mail host itself which is fllisted, but some intermediate relay which the email is routed through.
	www.cableforum.co.uk /board/showthread.php?t=36659 (1111 words)

	Invocon Blocked Email Exception Request (Site not responding. Last check: 2007-10-03)
		Due to the large volume of SPAM received at Invocon, we have decided to use various methods of blocking access to our email server(s).
		One of these methods is the Spam and Open Relay Blocking System (SORBS).
		When the log shows a large volume of spam received from a certain domain or IP address range, that domain or IP address range will be blocked.
	www.invocon.com /blocked_email.html (166 words)

	Welcome To Everyones Internet® \| EV1.net - 1 \| Houston's Largest and Fastest Growing ISP (Site not responding. Last check: 2007-10-03)
		Inside the SPAM Console the first thing to notice should be the title of the page located directly below the picture of the MailBox.
		NJABL - NJABL.ORG maintains a list of known and potential spam sources (open relays, open proxies, open form to mail HTTP gateways, dynamic IP pools, and direct spammers) for the purpose of being able to tag or refuse email and prevent at least some spam.
		This test lists networks hijacked from their original owners, some of which are already spamming.
	my.ev1.net /english/support/spam.asp (576 words)

	Using E-Mail @ UNH
		Spam volume has increased dramatically over recent weeks.
		On Sunday, October 29th, CIS implemented a new spam filtering process using SORBS (Spam and Open Relay Blocking System) on our mail servers.
		This experiment appeared promising, as it was catching in excess of 12,000 email messages hourly.
	www.unh.edu /users/unh/cis/email/index.html (228 words)

	What to Do When You're Branded as Spam - WinPlanet Windows Software Reviews
		An open relay (sometimes called an insecure relay or a third-party relay) is an SMTP e-mail server that allows the third-party relay of e-mail messages.
		By relaying mail through several open relay mail servers at the same time, it is possible to flood the Internet with large amounts of junk mail in a very short period of time before being detected.
		So in answer to your question, the reason your mail is being blocked is because, most likely, the server where your e-mail is being hosted has been identified as an exploitable server and as such has been added to the blocked list.
	www.winplanet.com /article/3098-.htm (1024 words)

	Wisconsin Spam Law, Spam News, Anti-Spam Resources - Spam Is Bad (Site not responding. Last check: 2007-10-03)
		Your information source for spam and a Wisconsin Internet Community against it.
		The operator of the Spam and Open Relay Blocking System (SORBS), Matthew Sullivan, told silicon.com's sister site ZDNet Australia the company's actions have thrown a huge spanner in the works.
		Spam software can no longer check the validity of a domain name to make sure it's not forged, Sullivan says.
	www.spamisbad.com /comment.php?320 (382 words)

	Print - Blacklists Decrease Spam
		The downside of the approach is that it takes a while to train the mail filter to properly filter as much spam as possible.
		One thing I've found that really helps reduce the amount of spam that reaches my inbox is that my email filter supports the use of fllist services.
		An anonymous proxy blocking service I can recommend is http://www.countrycheck.com Rather than focus on blocking email spam, they focus on blocking website spam.
	www.windowsitpro.com /articles/print.cfm?articleid=44488 (618 words)

	Spam block lists bombed to oblivion - Security - MSNBC.com
		Guilmette, of Roseville, Calif., told MSNBC.com on Wednesday that his mail, web and DNS servers were bombarded by data packets directed at Monkeys.com from “more than 10,000 machines” in DDOS attacks that lasted for 10 days beginning on Aug. 19 and then resumed again late last week.
		But because the attacks are targeting multiple sites rather than just one or two, most experts say spammers are more likely culprits.
		Haight, who said that SpamCop was knocked offline periodically in the early days of the attack in mid-July, said it will cost about $30,000 this year to pay for a content distribution network capable of withstanding such assaults.
	www.msnbc.msn.com /id/3088113 (1369 words)

	Stop Link Spam Bots
		Enter your email below to convert it into html browser code.
		This makes it hard for spam bots to read your email address.
		Help's you reduce the amount of spam in your mailbox.
	www.safeemail.org (33 words)

	SourceForge.net: SORBS (Anti Relay & Spam blocker)
		This project is to provide a SMTP relay server that automatically checks incoming SMTP connections for origination from a server with an unsecured SMTP server and/or Proxy server (SOCKS/HTTP etc)
		Support Requests : (1 open / 1 total)
		Feature Requests : (0 open / 0 total)
	sourceforge.net /projects/sorbs (109 words)

	Openrbl Client Zones
		: DNSBL: open proxies, used by irc-servers (part of Spamhaus XBL)
		SPEWS1: Spam Early Prevention System - Level 1
		SPEWS2: Spam Early Prevention System - Level 2
	openrbl.org /client/t/zones.htm (171 words)

	drbcheck: dr. Jørgen Mash's DNS database list checker (Site not responding. Last check: 2007-10-03)
		+ INTERSERVER Checks multiple spam traps and blocks the IPs of the sender to those email addresses.
		+ SORBSSPAM SORBS hosts that have been sending spam at any time, and not subsequently resolving the matter and/or requesting a delisting.
		+ SORBSZOMBIE List of networks hijacked from their original owners, some of which have already used for spamming.
	www.moensted.dk /spam (2584 words)

	[SpamCop-Mail] Re: BIGPOND listed as Spammer - Largest ISP in Australia!!!! - 144.135.25.158
		See http://antispam.or.id/?ip=144.135.25.158 CSMA-SBL McFadden Associates, IPs of mailservers that send spam once in a short timefram: sbl.csma.biz -> 127.0.0.2 http://bl.csma.biz/cgi-bin/listing.cgi?ip=144.135.25.158 CYBERLOGIC local bl at Cyberlogic, Blocking list used to prevent reoccuring spam: dnsbl.cyberlogic.net -> 127.0.0.2 See http://dnsbl.cyberlogic.net.
		: spam.dnsbl.sorbs.net -> 127.0.0.6 Spam Received See: http://www.dnsbl.sorbs.net/cgi-bin/lookup?IP=144.135.25.158 SORBSSPEWS-L1 Spam Prevention Early Warning System - Level 1 Mirror: l1.spews.dnsbl.sorbs.net -> 127.0.0.2 !
		[1] bigpond, see http://spews.org/ask.cgi?S3055 SORBSSPEWS-L2 Spam Prevention Early Warning System - Level 2 Mirror: l2.spews.dnsbl.sorbs.net -> 127.0.0.2 !
	news.spamcop.net /pipermail/spamcop-mail/2004-May/014022.html (241 words)

Try your search on: Qwika (all wikis)