Related Posts

List Attrition

DJ over at Bronto blog has a post up about list churn / list attrition. She quotes a statistic published by Loren from MediaPost (the original post is behind a subscription wall) that a list will lose 30% of their subscribers year over year. This is similar to a statistic that I use, but the context I have seen the published statistic in is slightly different. DJ offers suggestions on how to reduce this churn. All the suggestions are great, but I think that they slightly miss the point. There are multiple processes that can be described as list churn. One is churn DJ addresses, that is people unsubscribe from a mailing list. The other is people abandon their email addresses. Individual mailers have some control over the first type of churn, but almost no control over the second.
I think the study Loren was quoting describes the second phenomenon not the first. In 2002, ReturnPath published a study that showed 31% of people changed email addresses in a single year. Understand, this does not mean that 31% of recipients on any particular list will actively decide to unsubscribe from a list or report it as spam or otherwise unsubscribe from that list. This is 31% of all email address owners will get a new address and abandon their current one. There are a few reasons for the churn.

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Size isn't the only metric

MarketingSherpa has a case study up today about a company that took an aggressive stance on re-engagement that reduced their house list size by over 95%. While the size of the list went down, online sales doubled.
The whole article is a lesson in how to do email right. They are sending relevant and engaging mail to their subscribers. They kept the addresses of people who wanted the mail, but designed a new program from the ground up. All of the key points I, and others, keep talking about is present in their new program.

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