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	<title>&#45; CircleID</title>
	<link>https://www.circleid.com/blogs/</link>
	<description>Postings from  on CircleID</description>
	<dc:language>en</dc:language>
	<dc:rights>Copyright 2026, unless where otherwise noted.</dc:rights>
	<dc:date>2026-03-31T21:29:00+00:00</dc:date>

	
	<item>
		<title> Spam Is Never Timely Nor Relevant (Featured Blog)</title>
		<guid isPermaLink="true">https://circleid.com/posts20190923_spam_is_never_timely_nor_relevant</guid>
		<link>https://circleid.com/posts20190923_spam_is_never_timely_nor_relevant</link>
		<description><![CDATA[One of the ongoing recommendations to improve deliverability is to send email that is timely and relevant to the recipient. The idea being that if you send mail a recipient wants, they're more likely to interact with it in a way that signals to the mailbox provider that the message is wanted. The baseline for that, at least whenever I've talked about timely and relevant, is that the recipient asked for mail from you in the first place. <a href="https://circleid.com/posts20190923_spam_is_never_timely_nor_relevant">More...</a>]]></description>
		<dc:date>2026-03-31T14:29:00-07:00</dc:date>
	</item>
	
	<item>
		<title> Spamtraps Are Overblown... by Senders (Featured Blog)</title>
		<guid isPermaLink="true">https://circleid.com/posts20190429_spamtraps_are_overblown_by_senders</guid>
		<link>https://circleid.com/posts20190429_spamtraps_are_overblown_by_senders</link>
		<description><![CDATA[One of the fascinating parts of my job is seeing how different groups in email have radically disparate points of view. A current example is how much value senders put on spamtraps compared to ISPs and filtering companies. I understand why this is. In all too many cases, when a sender asks why they're mail is going to bulk or being blocked, the answer is "you're hitting spamtraps." The thing is, spamtraps are almost never the only reason mail is being blocked. <a href="https://circleid.com/posts20190429_spamtraps_are_overblown_by_senders">More...</a>]]></description>
		<dc:date>2026-03-31T14:29:00-07:00</dc:date>
	</item>
	
	<item>
		<title> My Domain Reputation Is Bad, Should I Get a New Domain? (Featured Blog)</title>
		<guid isPermaLink="true">https://circleid.com/posts20190226_my_domain_reputation_is_bad_should_i_get_a_new_domain</guid>
		<link>https://circleid.com/posts20190226_my_domain_reputation_is_bad_should_i_get_a_new_domain</link>
		<description><![CDATA[Many companies have the occasional "oops" where they send email they probably shouldn't have. This can often cause a decrease in reputation and subsequent delivery problems. Some companies rush to fix things by changing domains. Brand new domains, those registered less than 30 days, have really bad reputations. Blame the spammers and scammers who exploited a loophole and sent tons of untraceable spam from newly registered domains that they then abandoned without paying for them. <a href="https://circleid.com/posts20190226_my_domain_reputation_is_bad_should_i_get_a_new_domain">More...</a>]]></description>
		<dc:date>2026-03-31T14:29:00-07:00</dc:date>
	</item>
	
	<item>
		<title> Email Marketer's Dilemma: Disappearing Domains (Featured Blog)</title>
		<guid isPermaLink="true">https://circleid.com/posts20170605_email_marketers_dilemma_disappearing_domains</guid>
		<link>https://circleid.com/posts20170605_email_marketers_dilemma_disappearing_domains</link>
		<description><![CDATA[On May 31, British broadband provider EE discontinued service for a number of email domains: Orange.net, Orangehome.co.uk, Wanadoo.co.uk, Freeserve.co.uk, Fsbusiness.co.uk, Fslife.co.uk, Fsmail.net, Fsworld.co.uk, and Fsnet.co.uk. These domains were acquired by EE as part of multiple mergers and acquisitions. On their help page, EE explains that the proliferation of free email services with advanced functionality has led to a decrease in email usage at these domains. <a href="https://circleid.com/posts20170605_email_marketers_dilemma_disappearing_domains">More...</a>]]></description>
		<dc:date>2026-03-31T14:29:00-07:00</dc:date>
	</item>
	
	<item>
		<title> Large Companies (Un?)knowingly Hire Spammers (Featured Blog)</title>
		<guid isPermaLink="true">https://circleid.com/posts20170306_large_companies_unknowingly_hire_spammers</guid>
		<link>https://circleid.com/posts20170306_large_companies_unknowingly_hire_spammers</link>
		<description><![CDATA[This morning, CSO and MacKeeper published joint articles on a massive data leak from a marketing company. This company, River City Media (RCM), failed to put a password on their online backups sometime. This leaked all of the company's data out to the Internet at large. MacKeeper Security Researcher, Chris Vickery discovered the breach back in December and shared the information with Spamhaus and CSO online. The group has spent months going through the data from this spammer. <a href="https://circleid.com/posts20170306_large_companies_unknowingly_hire_spammers">More...</a>]]></description>
		<dc:date>2026-03-31T14:29:00-07:00</dc:date>
	</item>
	
	<item>
		<title> Yahoo Collaborating With US Intelligence Agencies (Featured Blog)</title>
		<guid isPermaLink="true">https://circleid.com/posts20161005_yahoo_collaborating_with_us_intelligence_agencies</guid>
		<link>https://circleid.com/posts20161005_yahoo_collaborating_with_us_intelligence_agencies</link>
		<description><![CDATA[It was revealed yesterday that Yahoo has been scanning people's email for the federal government. This activity was, apparently, authorized by Yahoo CEO Marissa Meyer but not the former CSO Alex Stamos. Mr. Stamos left Yahoo in June 2015. He also publicly disagreed with the director of the NSA back in February 2015 about the NSA having access to encrypted data. <a href="https://circleid.com/posts20161005_yahoo_collaborating_with_us_intelligence_agencies">More...</a>]]></description>
		<dc:date>2026-03-31T14:29:00-07:00</dc:date>
	</item>
	
	<item>
		<title> Trump's Fundraising Email - Bad Data Drives Delivery Problems (Featured Blog)</title>
		<guid isPermaLink="true">https://circleid.com/posts20160630_trumps_fundraising_email_bad_data_drives_delivery_problems</guid>
		<link>https://circleid.com/posts20160630_trumps_fundraising_email_bad_data_drives_delivery_problems</link>
		<description><![CDATA[It's a wild election season here in the US. In the past few presidential elections, email has played a bigger and bigger role in messaging and fundraising. President Obama's campaign used email effectively, but sent huge volumes. In fact, the volume was so heavy, it led to a joke on the Daily Show... This year there is a stark difference in how the candidates are using email. <a href="https://circleid.com/posts20160630_trumps_fundraising_email_bad_data_drives_delivery_problems">More...</a>]]></description>
		<dc:date>2026-03-31T14:29:00-07:00</dc:date>
	</item>
	
	<item>
		<title> Security, Backdoors and Control (Featured Blog)</title>
		<guid isPermaLink="true">https://circleid.com/posts20160217_security_backdoors_and_control</guid>
		<link>https://circleid.com/posts20160217_security_backdoors_and_control</link>
		<description><![CDATA[Encryption is a way to keep private information private in the digital world. But there are government actors, particularly here in the US, that want access to our private data. The NSA has been snooping our data for years. Backdoors have been snuck into router encryption code to make it easier to break. Today at M<sup>3</sup>AAWG we had a keynote from Kim Zetter, talking about Stuxnet and how it spread well outside the control of the people who created it. <a href="https://circleid.com/posts20160217_security_backdoors_and_control">More...</a>]]></description>
		<dc:date>2026-03-31T14:29:00-07:00</dc:date>
	</item>
	
	<item>
		<title> Are Botnets Really the Spam Problem? (Featured Blog)</title>
		<guid isPermaLink="true">https://circleid.com/posts20150805_are_botnets_really_the_spam_problem</guid>
		<link>https://circleid.com/posts20150805_are_botnets_really_the_spam_problem</link>
		<description><![CDATA[Over the last few years I've been hearing some people claim that botnets are the real spam problem and that if you can find a sender then they're not a problem. Much of this is said in the context of hating on Canada for passing a law that requires senders actually get permission before sending email. Botnets are a problem online. They're a problem in a lot of ways. They can be used for denial of service attacks. They can be used to mine bitcoins... <a href="https://circleid.com/posts20150805_are_botnets_really_the_spam_problem">More...</a>]]></description>
		<dc:date>2026-03-31T14:29:00-07:00</dc:date>
	</item>
	
	<item>
		<title> The Death of IP Based Reputation (Featured Blog)</title>
		<guid isPermaLink="true">https://circleid.com/posts20130712_the_death_of_ip_based_reputation</guid>
		<link>https://circleid.com/posts20130712_the_death_of_ip_based_reputation</link>
		<description><![CDATA[Back in the dark ages of email delivery the only thing that really mattered to get your email into the inbox was having a good IP reputation. If your IP sent good mail most of the time, then that mail got into the inbox and all was well with the world. All that mattered was that good IP reputation. Even better for the people who wanted to game the system and get their spam into the inbox, there were many ways to get around IP reputation. <a href="https://circleid.com/posts20130712_the_death_of_ip_based_reputation">More...</a>]]></description>
		<dc:date>2026-03-31T14:29:00-07:00</dc:date>
	</item>
	
	<item>
		<title> Is Spamhaus Still Relevant? (Featured Blog)</title>
		<guid isPermaLink="true">https://circleid.com/posts20121115_is_spamhaus_still_relevant</guid>
		<link>https://circleid.com/posts20121115_is_spamhaus_still_relevant</link>
		<description><![CDATA[Recently the relevancy of Spamhaus and whether it is still necessary has been raised in various discussions and in particular among marketers. I think this is an interesting question for a lot of reasons. One is because there's such a broad range of opinions about Spamhaus and almost none of them are ambivalent. Another is because so many people don't really know what Spamhaus does, other than publish the SBL and ROKSO. <a href="https://circleid.com/posts20121115_is_spamhaus_still_relevant">More...</a>]]></description>
		<dc:date>2026-03-31T14:29:00-07:00</dc:date>
	</item>
	
	<item>
		<title> J.D. Falk Award (Featured Blog)</title>
		<guid isPermaLink="true">https://circleid.com/posts20120718_jd_falk_award</guid>
		<link>https://circleid.com/posts20120718_jd_falk_award</link>
		<description><![CDATA[This morning M<sup>3</sup>AAWG announced the creation of the J.D. Falk award to recognize and honor people like J.D. who work to make the Internet safer for all users... J.D. was a legend in the abuse prevention world when I first started learning about spam and abuse prevention back in the late 90's. <a href="https://circleid.com/posts20120718_jd_falk_award">More...</a>]]></description>
		<dc:date>2026-03-31T14:29:00-07:00</dc:date>
	</item>
	
	<item>
		<title> Email Delivery Challenges Increasing (Featured Blog)</title>
		<guid isPermaLink="true">https://circleid.com/posts20120320_email_delivery_challenges_increasing</guid>
		<link>https://circleid.com/posts20120320_email_delivery_challenges_increasing</link>
		<description><![CDATA[Return Path published their most recent Global Deliverability report this morning. It shows that inbox placement of mail has decreased 6% in the second half of 2011. This decrease is the largest decrease Return Path has seen in their years of doing this report... Filters are getting more sophisticated. This means they're not relying on simply IP reputation for inbox delivery any longer. <a href="https://circleid.com/posts20120320_email_delivery_challenges_increasing">More...</a>]]></description>
		<dc:date>2026-03-31T14:29:00-07:00</dc:date>
	</item>
	
	<item>
		<title> IP Address Reputation Primer (Featured Blog)</title>
		<guid isPermaLink="true">https://circleid.com/postsip_address_reputation_primer</guid>
		<link>https://circleid.com/postsip_address_reputation_primer</link>
		<description><![CDATA[There has been a lot of recent discussions and questions about reputation, content and delivery of email. I started to answer some of them, and then realized there weren't any basic reference documents I could refer to when explaining the interaction. So I decided to write some. This post is about IP address reputation with some background on why IPs are so important and why ISPs focus so heavily on the sending IP. <a href="https://circleid.com/postsip_address_reputation_primer">More...</a>]]></description>
		<dc:date>2026-03-31T14:29:00-07:00</dc:date>
	</item>
	
	<item>
		<title> Biggest Botnet Takedown to Date (Featured Blog)</title>
		<guid isPermaLink="true">https://circleid.com/posts20111109_biggest_botnet_takedown_to_date</guid>
		<link>https://circleid.com/posts20111109_biggest_botnet_takedown_to_date</link>
		<description><![CDATA[Yesterday law enforcement officials arrested 6 people and charged them with running a massive internet fraud ring. Over 4 million PCs were part of the botnet. According to the FBI, "the cyber ring used a class of malware called DNSChanger to infect approximately 4 million computers in more than 100 countries. There were about 500,000 infections in the U.S., including computers belonging to individuals, businesses, and government agencies such as NASA." <a href="https://circleid.com/posts20111109_biggest_botnet_takedown_to_date">More...</a>]]></description>
		<dc:date>2026-03-31T14:29:00-07:00</dc:date>
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