Our formerly feral cat was diagnosed with hyperthyroid disease earlier this year. This week she went in for treatment with radioactive iodine. Now that she’s home, we have some minor safety precautions (mostly around keeping radiation out of landfills and minimizing our exposure) for the next 2 weeks. In previous careers, both Steve and I have been licensed to work with radioactivity so...
Almost 2 years ago I wrote a blog post titled The Death of IP Based Reputation. These days I’m even more sure that IP based reputation is well and truly dead for legitimate senders. There are a lot of reasons for this continued change. Improved computing power I touched on the increase in computing power in my 2013 post. The power and the complexity of filters in even greater now than then...
I received mail from Mitusbishi UK over the weekend, telling me that as a subscriber I was eligible to buy a car from one of their dealers, or something. I didn’t actually read the whole thing. While I am competent in a right hand drive, even when it’s a manual, it’s not something I want to try over here in the US. The address the message came to is one that I’ve had for...
Yahoo has updated their FAQ and listed out a number of factors they use to determine if a mail message is spam. IP Address Reputation URL Reputation Domain Reputation Sender Reputation DomainKeys Identified Mail (DKIM) signatures DMARC authentication Autonomous System Number (ASN) reputation Autonomous System Number (ASN) is a globally unique number that is assigned to a group of IP networks...
Sitting in my drafts folder is a rant I wrote during one of the “email is dead” discussions. I think there’s a core of usefulness in my rant. The discussion was about how many click bait articles claim email is dead because people under 20 don’t have email accounts, or if they don’t, then they don’t check them. Almost everything online is tied to an email...
As of April 15th, Clearwire will no longer support their CLEAR Email/Clearwire Email services which include @clear.net and @clearwire.net mail domains. They were acquired by Sprint and these domains will bounce after April 15th 2015.
Many thanks to Anthony Chiulli from Salesforce for the tip.
Most delivery problems to US ISPs boil down to sending mail to people who don’t want it or expect it. Sure, we do technical audits and find issues with how companies are sending mail. But all the technical correctness in the world isn’t going to make up for sending mail users complain about or don’t interact with. Recently we were working with a client who was having some...
We started the month with some conversations about best practices, both generally looking at the sort of best practices people follow (or don’t) as well as some specific practices we wanted to look at in more depth. Three for this month: Be gracious with opt-out requests. Email marketing is hard. Even when it’s successful, response rates can be very low. It is surely frustrating to hear from...
Terry Zink posted two informative blog posts recently, the first being the change to unauthenticated mail sent over IPv6 to EOP and the second post about EOP (Office365 and Exchange Hosting) and Outlook.com/Hotmail infrastructure converging. Exchange Online Protection (EOP) is the filtering system in place for Office 365 and hosted Exchange customers. Outlook.com/Hotmail utilized its own mail...
Just yesterday a group of delivery folks were discussing email verification services over IRC. We were talking about the pros and cons, when we’d suggest using them, when we wouldn’t, which ones we’ve worked with and what our experiences have been. I’ve been contemplating writing up some of my thoughts about verification services but it’s a post I wanted to spend...
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