ISPs like Hotmail have been pushing e-mail authentication for years. I've been talking about Sender ID and Hotmail for more than two years now and Meng Wong (now of Karmasphere) has been educating senders and receivers on why sender policy framework (SPF) is important since at least mid-2004. (This article first appeared in the 2007 edition of the Essential Guide to E-Mail Marketing.)
What's in our mailbox this month: fitness postcards from Retro Fitness, American Woman Fitness Centers, Union's United Taekwondo Academy, and Bally Total Fitness. (We're totally pumped.)
Social data can improve a brand's bottom line and customer relationships. Just ask brands Infiniti and Diamond Nexus.
Here are three must-have data sets that every marketer should include in his or her email strategy.