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Monthly Archives: January 2012

DKIM deployment challenges

Cloudmark has an interesting blog post pointing out some of the challenges of signing mail with DKIM in a large company with a diverse mail system.

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DMARC: an authentication framework

A new email industry group was announced this morning. DMARC is a group of industry participants, including large senders, large receivers and relevant intermediaries working on a framework to reduce the harm from phishing. DMARC is working on a standard to allow senders to publish sending policies and receivers to act on those policies. Currently, […]

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Costs and accounting for email

The decision by Cheetahmail to stop allowing customers to use email append caused a very long discussion on some of the marketing lists.  One of the criticisms had to do with what a dumb “business decision” Cheetah was making. I disagree. Appending, and other non-permission based sending cause a lot of costs to trickle down […]

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IP Address reputation primer

There has been a lot of recent discussion and questions about reputation, content and delivery. I started to answer some of them, and then realized there weren’t any basic reference documents I could refer to when explaining the interaction. So I decided to write some. This first post is about IP address reputation with some […]

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What are you validating?

Al throws in his own two cents on the question of real time address validation.

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Can you verify email addresses in real time?