BLOG

Tag: blocklist

Reading between the lines

Reading between the lines an important skill in deliverability. Why? Over the last few years there’s been an increasing amount of collaboration between deliverability folks at ESPs and ISPs. This is great. It’s a vast improvement on how things were 10 years ago. However, there are still ongoing complaints from both sides. There probably always […]

No Comments

January 2017: The Month in Email

Between client work and our national political climate, it’s been a very busy month around here and blogging has been light. Things show no sign of slowing down in February, so we’d love to hear from you with questions and suggestions of what you’d most like to see us focus on in our limited blogging […]

No Comments

Asking for help with a blocklist

There are often questions arising about how to go about getting off a particular blocklist. A few years ago I led the MAAWG effort to document what to if if you were On a Blocklist (pdf link). That document was aimed primarily at MAAWG members and deliverability experts with working knowledge of blocklists. I think, even […]

No Comments

How many blocklists do we need?

There’s been a discussion on the mailop list about the number of different blocklists out there. There are discussions about whether we need so many lists, and how difficult the different lists make it to run a small mail system (80K or so users). This discussion wandered around a little bit, but started me thinking […]

No Comments

Ongoing subscription attack

Brian Krebs posted a couple days ago about his experience with the subscription bomb over the weekend. He talks about just how bad it was over the weekend. At approximately 9:00 a.m. ET on Saturday, KrebsOnSecurity’s inbox began filling up with new newsletter subscriptions. The emails came in at a rate of about one new […]

6 Comments

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 […]

3 Comments

Subscription bombing, ESPs and Spamhaus

A number of ESPs woke up to a more-than-usually-bad Monday morning. Last night Spamhaus listed 10s of networks, including ESPs, on the SBL. The listings all contained the following note: Problem description ============================ The newsletter service () is using the referenced IP address to send bulk email. Unfortunately, the said newsletter service is not verifying […]

20 Comments

December 2014: The month in email

2014 has been a busy and exciting year at Word to the Wise (look for more on that in a year-end wrap-up post next week!) and this month was particularly thrilling for us as we officially doubled our size with the addition of Josh and Meri on our client services team. If you’re a regular […]

No Comments

Some email related news

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) […]

No Comments

Fake DNSBLs

Spamhaus recently announced a few years ago that they have discovered a company that is pirating various blocklists, relabeling them and selling access to them. Not only is the company distributing the zones, they’re also running a “pay to delist” scheme whereby senders are told if they pay money, they’ll be removed from the lists. […]

7 Comments

Archives