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Tag: Blocklisting

Questions about Spamhaus

I have gotten a lot of questions about Spamhaus since I’ve been talking about them on the blog and on various mailing lists. Those questions can be condensed and summed up into a single thought. What engagement metrics should I monitor to avoid a Spamhaus listing? First off Spamhaus doesn’t care about about engagement. Spamhaus […]

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Dealing with blacklists

Al has a good post listing the top 5 things senders should remember when dealing with blacklists. One of the critical things to remember about blocklists is that they are an early warning sign. Sure, some of them are one crank and his cat and will not hurt your overall delivery. A sender may be […]

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Links for 7/8/9

With all the traveling I did last month, I’m still not back to full blogging speed. I have been slowly reading through the backlog of unread posts from my RSS feeds and there was lots of good stuff published. Three myths about DKIM by John Levine. A very good explanation taking down some of the […]

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Winning friends and removing blocks

I do a lot of negotiating with blocklists and ISPs on behalf of my clients and recently was dealing with two incidents. What made this so interesting to me was how differently the clients approached the negotiations. In one case, a client had a spammer slip onto their system. As a result the client was […]

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Results based email marketing

Two articles showed up in my RSS feed in the last 24 articles that touched on different aspects of the same issue. Senders should improve their email marketing program even when they are working well. Stephanie Miller over at ReturnPath addresses the lost revenue from current programs. Consider that if we can earn a nearly […]

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Followup to EEC spamming

Ken has a followup to his article last week about the EEC spamming. Multiple e-mails obtained by this newsletter clearly show VIV was prospecting the EEC member list from its servers in violation of the EEC’s own privacy policy. [...] Moreover, one reader sent this newsletter two separate free issues of two different editions of […]

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Postini bug

Ben over at MailChimp has an article talking about a recent experience with Postini and an actual bug that causes Postini to interact badly with another spamfilter and block non-spam.

1 Comment

More on spamfiltering feedback

Al wrote a post commenting on my post from last Thursday on spamfilters talking to senders who are being filtered. I think his take on it is close to mine. I would point out that Google has a pretty opaque system and no feedback to senders, but a lot of people seem to think their […]

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Sender complaints about spamfiltering

JD posed a question in my post about Postini and trying to sort out a customer getting marked as spam by their filtering mechanism and I think it bears more discussion than can be done in comments. And sure, it’s a best practice for filtering companies to respond politely to requests from filterees. But is […]

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Affiliates: what is a company’s responsibility

Many of my clients come to me when they end up with delivery problems due to the actions of affiliates. These can either be listings in some of the URL blocklists (either public or private) or escalations of IP based listings. In many of the cases I have dealt with affiliates, the affiliates have sloppy […]

1 Comment
  • AOL compromise

    Lots of reports today of a security problem at AOL where accounts are sending spam, or are being spoofed in spam runs or something. Details are hazy, but there seems to be quite a bit of noise surrounding this incident. AOL hasn't provided any information as of yet as to what is going on.4 Comments


  • ReturnPath on DMARC+Yahoo

    Over at ReturnPath Christine has an excellent non-technical summary of the DMARC+Yahoo situation, along with some solid recommendations for what actions you might take to avoid the operational problems it can cause.No Comments


  • AOL problems

    Lots of people are reporting ongoing (RTR:GE) messages from AOL today.  This indicates the AOL mail servers are having problems and can't accept mail. This has nothing to do with spam, filtering or malicious email. This is simply their servers aren't functioning as well as they should be and so AOL can't accept all the mail thrown at them. These types of blocks resolve themselves. 1 Comment


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