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Monthly Archives: February 2013

Censoring email

It seems some mail to Apple’s iCloud has been caught in filters. Apparently, a few months ago someone sent a script to a iCloud user that contained the phrase “barely legal teen” and Apple’s filters ate it. The amount of hysteria that I’ve seen in some places about this, though, seems excessive. One of my […]

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Thoughts on bounce handling

This week’s Wednesday question comes from D. What are your thoughts on bounce handling There’s no specific standard for bounce handling as we often talk about it. While a lot of people will mention the RFCs, the RFCs only say what to do with a single email that gets a 4xy or a 5xy during […]

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Opting customers in to new programs

Recently, I started getting “1 sale a day!” emails from buy.com. I’ve made purchases from Buy in the past and generally have been content to get emails from them. They’re not always relevant, but hey, it’s relatively non-intrustive marketing. When they started this new program, they just started mailing: no warning, no introduction, nothing. So […]

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Irony

Saw this on twitter today: Oh, the irony of an append vendor using COI for a whitepaper download. No, I don’t know the vendor. But it doesn’t really matter. A lot of the vendors don’t have very good data.  

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Earthlink opens up FBL

Earlier this week I was at MAAWG and one of the Earthlink postmaster folks stopped me to tell me that Earthlink was now accepting non-ISP applications to their Feedback Loop. In order to apply for the Earthlink FBL send an email to fblrequest@abuse.earthlink.net with the IP addresses and the FBL email address.

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TWSD: Hiding the opt-out

This is an actual opt-out link that came in a recent email. Sadly, this is a real company, listed on the NYSE sent by a major ESP.  

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Verifying addresses after POS collection

Collecting email addresses at point of sale is a challenge. Some stores collect the addresses electronically, where the clerk or the customer types addresses directly into the register. Smaller stores, however, typically collect addresses on a sheet of paper at the cash register. Eventually someone takes the list and types it into whatever contact management […]

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Fast and loose

Politicians often play fast and loose with permission and data. This can cause them all sorts of problems with email delivery at major ISPs. I really expect that politicians buy, sell, transfer, spindle, mutilate and fold data. If they can use it to further their goals, they will. And, many of the consumer protection and […]

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Happy Valentines Day

From our friends at Mashable, Buzzword Valentines. My favorite

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Spamming to hide fraud

An interesting article at NetworkWorld last month, describing spam bombs to victims of fraud and identity theft to hide the transactions and notifications from financial institutions. The targets are individuals, whose identity and personal information the thieves already have. The victims’ email inboxes suddenly get flooded with thousands upon thousands of emails — as many […]

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  • HE.net DNS problems

    Hurricane Electric had a significant outage of their authoritative DNS servers this morning, causing them to return valid responses with no results for all(?) queries. This will have caused delivery problems for any mail going to domains using HE.net DNS - which will include some of their colocation customers, as well as users of their free services - but also will have caused reverse DNS to fail for most servers hosted by Hurricane Electric worldwide, so if any of your mail is being sent from HE hosted machines you may have seen problems. (We're HE customers so we noticed. Still happy with them as a vendor.)No Comments


  • 65.0.0.0/8 DNS issues

    If you're sending email from any address beginning with a 65 - in 65.0.0.0/8 - it's possible you'll see some delivery problems. Something appears to be broken with dnssec signatures for the reverse DNS zone, leading queries for reverse DNS to fail for anyone using a dnssec aware DNS resolver (which is almost everyone).1 Comment


  • Our green bar certificate is going away

    Later today we'll be switching from an Extended Validation ("green bar") SSL certificate to a Domain Validation certificate. This isn't exactly a planned change but I'm waiting for responses from Comodo before I go into it too much. I'll share some more details next week.3 Comments


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