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Tag: Spamhaus

Microsoft using Spamhaus Lists

An on the ball reader sent me a note today showing a bounce message indicating microsoft was rejecting mail due to a Spamhaus Blocklist Listing. 5.7.1 Client host [10.10.10.10] blocked using Spamhaus. To request removal from this list see http://www.spamhaus.org/lookup.lasso (S3130). [VE1EUR03FT043.eop-EUR03.prod.protection.outlook.com] The IP in question is listed on the CSS, which means at a […]

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What kind of mail do filters target?

All to often we think of filters as a linear scale. There’s blocking on one end, and there’s an inbox on the other. Every email falls somewhere on that line. Makes sense, right? Bad mail is blocked, good mail goes to the inbox. The bulk folder exists for mail that’s not bad enough to block, […]

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What's going on with your SBL listing?

This popped up on my Facebook memories this morning. I don’t post about client events very often, but given I can’t remember even what client this is, I don’t think I’m revealing too much info. FB memory from a few years ago. I’m dealing with a client who has a pretty big SBL listing. They’re […]

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Help! We're on Spamhaus' list

While trying to figure out what to write today, I checked Facebook. Where I saw a post on the Women of Email group asking for help with a Spamhaus listing. I answered the question. Then realized that was probably useable on the blog. So it’s an impromptu Ask Laura question. We’re listed on Spamhaus’ list, […]

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News in the email space

Various things happening in the email space recently that are worth mentioning but don’t have enough to justify a whole blog post. Verizon announced a new umbrella company for the AOL and Yahoo media properties, including things like Engadget, Huffington Post. Based on the various press articles I’ve seen this doesn’t appear to affect the email handling for either […]

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Large companies (un?)knowingly hire spammers

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 […]

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Spamhaus and subscription bombing

Spamhaus released a blog post today discussing the recent subscription bombing: Subscription bombing COI captcha and the next generation of mail bombs. As I mentioned in my initial posts, this abusive behavior goes beyond spamming. This is using email to harass individuals. Spamhaus even mentions a potential service that can be used to do these […]

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Spamhaus comments on subscription attack

Steve Linford, CEO of Spamhaus commented on my blog post about the current listings. I’m promoting it here as there is valuable information in it. Excellent well summarized article Laura ? No we’ve not changed SBL policy to require COI. It’s something we very strongly advise but we can not make a requirement. We’ll have […]

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The 10 worst …

Spamhaus gave a bunch of us a preview of their new “Top 10 worst” (or should that be bottom 10?) lists at M3AAWG. These lists have now been released to the public. The categories they’re measuring are: Countries Spam ISPs Spammers Botnet Countries Botnet ISPs Botnet ASNs TLDs Nothing really surprising there, but it’s nice […]

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CBL issues

I started seeing some folks complain about false CBL listings a few hours ago. I’m now seeing the same folks saying the listings are being removed. The symptoms look similar to what happened in November (mentioned here), but it appears the CBL team are on top of things and are working to rectify things quickly.

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