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Category: Best Practices

M3AAWG Recommends TLS

SSL or Secure Sockets Layer is protocol designed to provide a secure way of transmitting information between computer systems. Originally created by Netscape and released publicly as SSLv2 in 1995 and updated to SSLv3 in 1996. TLS or Transport Layer Security was created in 1999 as a replacement for SSLv3. TLS and SSL are most […]

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Brief DBL false positive

A code glitch in a new DBL sub-zone known as 'Abused-Legit' caused the new Abused-Legit zone to list ".net." for 60 minutes from 08:35 UTC. — The Spamhaus Project (@spamhaus) December 17, 2014 Spamhaus are rolling out a new subzone of the DBL, for domains whose webservers have been compromised and used to host spam […]

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Spam is about invading other people’s space

At the recent Sendgrid Emailmatter’s conference Sally Lehman advised attendees to “Treat someone’s inbox like it was their home.” This is advice I’ve been giving clients for a long time. I think it’s even more relevant now as so many people have data enabled phones and are checking email so frequently. It’s not just their […]

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The long tail of domains

I frequently get clients telling me that they have about 15 (20, 30) major domains on their list, and then a long tail of domains with only a couple of recipients. If you sort simply by the left hand side of the @, that’s true. When you’re sending email, it’s not just the domain in […]

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Unsubscribing is hard

A comment came through on my post about unsubscribing that helpfully told me that the problem was I didn’t unsubscribe correctly. As you know, there are usually two unsubscribe options in many of the bulk senders emails. Are you unsubscribing from the global or the offer unsub? Unless you are unsubscribing from both, you will […]

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Unsubscribing from spam, part 3

At the end of last year, I talked a little bit about a project I was working on to see if unsubscribing from spam would actually work. The address I picked was my first non-work/school related email address. It’s been mine since 2004 or so. I stopped using it for anything commerce related back in the […]

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Why don’t users want that mail?

Things are extremely busy here and blogging is going to be light for a few weeks. I’ll be reposting some older blog posts that are still relevant for today’s email senders. Today’s post is a repost from July 2009. I discuss why recipients complain about mail and how senders can lower the complaint rates. While this […]

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Typo traps

People make all sorts of claims about typo traps. One claim that showed up recently was that Spamhaus has just started using typo traps. I asked my Facebook network when people started using typos to detect incoming spam. Two different colleagues mentioned using typos, both on the left hand side and the right hand side, […]

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Have fun storming the CASL!

I’ve given Humble Bundle my (tagged) email address a bunch of times – as part of purchases, as my username on their website, to download games and books I’ve bought. And, naturally, they’ve sent me newsletters announcing when they have new sales. Did I check a checkbox or uncheck a checkbox? I don’t remember, and […]

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Transactional advertising

One of the things our bank does that I really like is send ATM receipts directly to the email address associated with the ATM card. No more random pieces of paper I have to track down, it’s all there in my mailbox. This week I noticed that the bank is leveraging the transactional mail to […]

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