What makes a good ESP?

There are a number of things that make a responsible ESP, including setting and enforcing standards higher than those set by the ISPs.
One of the responsible ESPs is Mailchimp. (Full disclaimer, I do consult for Mailchimp.) This ESP focuses on businesses with small to medium sized lists. They screen new customers for source of permission as well as mail content.
As well as putting a human in the loop and identifying problem customers manually, they have also developed an automated process that predicts the likelihood that a certain customer will violate their standards. This process is very similar to the reputation process in place at many ISPs. Customers that are flagged as potential problems are reviewed by staff members who contact the customer for further clarification.
What’s the benefit of this process? A good reputation, a clean customer base and positive notice by the ISPs. In fact,  just recently I was contacted by one of the very large consumer ISPs, confirming that Mailchimp is one of my clients. He informed me that he’d noticed a few of the Mailchimp IPs had a really high reputation but weren’t whitelisted. He asked me to send him all of their IPs so he could make sure all their IPs were whitelisted.
Proactive auditing of customers and predictive modeling of mailing results is working for Mailchimp and their customers.
Some ESPs have aggressive cancellation policies, which helps them police their networks and their customers. I often encounter former customers of these ESPs, either as direct clients or as customers of my ESP clients. In one case, I was asking around about a new client at their old ESP. “They tell me they left you under their own power and there was no spam issue involved, can you comment?” The policy person would not comment specifically about that client, but did comment that “95% of our former customers were disconnected for cause.”
These are two examples of ESPs that are working hard to minimize the amount of unwanted mail going through their network. They have invested time and energy into tools and staff to monitor the network. Staff is empowered to make decisions about customers and management believes no customer is “to big to disconnect.”
Tomorrow we’ll look at typical ESPs and their normal practices.

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How reputation and content interact

Recently, one of my clients had a new employee make a mistake and ended up sending newsletters to people in their database that had not subscribed to those particular newsletters. This resulted in their recipients getting 3 extra emails from them. These things happen, people fat-finger database queries or aren’t as careful with segmentation as they should be.
My clients were predictably unhappy about sending mail their users hadn’t signed up for and asked me what to do to fix their reputation. I advised they not do anything other than make sure they don’t do that again. The first send after their screw-up had their standard 100% inbox delivery. The second send had a significant problem with bulk foldering at Hotmail and Yahoo. The third send had their standard 100% inbox delivery.
So what happened on the second send? It appears that on that send they had a link or other content that “filled the bucket.” Generally, their IP reputation is high enough that content isn’t sufficient to send their mail into the bulk folder. However, their reputation dipped based on the mistake last week, and thus the marginal content caused the bulk foldering.
Overall, these are senders with a good reputation. Their screw up wasn’t enough to damage their delivery itself, but may have contributed to all their mail going into the bulk folder the other day. I expect that their reputation will rebound quickly and they will be able to send the same content they did and see it in the inbox.

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AOL EWL: low complaints no longer enough

This morning AOL announced some changes to their Enhanced White List. Given I’ve not talked very much about the AOL EWL in the past, this is as good a time as any to talk about it.
The AOL Enhanced Whitelist is for those senders that have very good practices. Senders on the EWL not only get their mail delivered to the inbox, but also have links and images enabled by default. Placement on the EWL is done solely on the basis of mail performance and only the best senders get on the list.
The new announcement this morning says that AOL will take more into account than just complaints. Previously, senders with the lowest complaint rates qualified for the EWL. Now, senders must also have a good reputation in addition to the low complaint rates. Good reputation is a measure of user engagement with a particular sender.
This change only reinforces what I and many other delivery experts have been saying: The secret to good delivery is to send mail recipients want. ISPs are making delivery decisions based on those measurements. Send mail that recipients want, and there are few delivery problems.
For a long time good delivery was tied closely to complaint rates, so senders focused on complaints. Spammers focused on complaints too, thus managing to actually get some of their spam delivered. ISPs noticed and started looking at other ways to distinguish wanted mail from spam. One of the better ways to separate spam from wanted mail is to look at user engagement. And the ISPs are measuring engagement and using that measurement as part of their decision making process. Send so much mail users don’t read it, and your reputation goes down followed by your delivery rates.

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A series of warnings

Over the last month there have been a number of people sounding warnings about coming changes that ESPs are going to have to deal with. There has been mixed reaction from various people, many people who hear these predictions start arguing with the speaker. Some argue that our predictions are wrong, others argue that if our predictions are right then the senders will just start acting more like spammers.
I have put together a collection of links from recent blog posts looking towards the future and how things may be changing.

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