Last week the megarbl.net domain name expired. Normally this would have no affect on anyone, but their domain registrar put in a wildcard DNS entry. Because of how DNSBLs work, this had the effect of causing every IP to be listed on the blocklist. The domain is now active and the listings due to the […]
I’m seeing some reports from various ESP folks that they’re experiencing an increase in Lashback listings the last day or so. They have contacted and are working with Lashback to identify what might be going on, if anything. I’ll update once I know more and have permission to share.
A couple links to relevant things that are happening in email. M3AAWG released the Help! I’m on a Blocklist! (PDF link) doc this week. This is the result of 4 years worth of work by a whole lot of people at M3AAWG. I was a part of the working group (“doc champion” in M3AAWG parlance) […]
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 […]
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 […]
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 […]
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 […]
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 […]
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.