ArchiveMay 2015

We gave you a chance…

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...

Deliverability and IP addresses

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...

Only spamtraps matter, or do they?

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 Mail Deliverability FAQ Updated

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...

What about Tom?

I use tom@hotmail.com as my default bogus email address. Tom has subscribed to so many things because of me. This is why address verification doesn’t work. The address tom@hotmail.com is a real address. It exists. It accepts mail. And at least one person admits to signing up Tom for mail that the person doesn’t want. I’m sure he’s not the only one. <- 250 OK -> MAIL...

Alternate contact when mail bounces

We received an invite from a local company recently. At the top of the invite there was a sticker. We attempted to send email, but your address bounced. Please contact either me or the tasting room to update. Thanks! We attempted to send email, but your address bounced. Please contact either me or the tasting room to update. Thanks! I signed up for their list in person. I’m not 100% sure...

Email can't be dead

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...

DMARC=BestGuessPass

Looking at the headers within the mail received with my Office365 domain I see dmarc=bestguesspass.  BestGuessPass?  That’s a new. A few days after seeing dmarc=bestguesspass, Terry Zink at Microsoft posted an explanation. Exchange Online Protection, the filtering system for Office365, is analyzing the authentication of incoming emails and if the domain is not publishing a DMARC record, EOP...

Clear and Clearwire.net

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.

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