IP reputation and email delivery

IP reputation is a measure of how much wanted mail a particular IP address sends.  This wanted mail is measured as a portion of the total email sent from that IP. Initially IP reputation was really the be all and end all of reputation, there was no real good way to authenticate a domain or a from address. Many ISPs built complex IP reputation models to evaluate mail based on the IP that sent the mail.
These IP reputation models were the best we had, but there were a lot of ways for spammers to game the system. Some spammers would create lots of accounts at ISPs and use them to open and interact with mail. Other spammers would trickle their mail out over hundreds or thousands of IPs in the hopes of diluting the badness enough to get to the inbox. Through it all they kept trying to get mail out through reputable ESPs, either by posing as legitimate customers or compromising servers.
These things worked for a while, but the ISPs started looking harder at the recipient pool in order to figure out if the interactions were real or not. They started looking at the total amount of identical mail coming from multiple IP addresses. The ISPs couldn’t rely on IP reputation so they started to dig down and get into content based filtering.
As the ISPs got better at identifying content and filtering on factors other than source IP, the importance of the IP address on inbox delivery changed. No longer was it good enough to have a high reputation IP sending mail.
These days your IP reputation dictates how fast you can send mail to a particular ISP. But a high reputation IP isn’t sufficient to get all the mail in the inbox. It’s really content that drives the inbox / bulk folder decisions these days.
 
Generally IPs that the ISP has not seen email traffic from before start out with a slight negative reputation. This is because most new IPs are actually infected machines. The negative reputation translates to rate limiting. The rate limiting minimizes people getting spam while the ISP works out if this is a real sender or a spammer.
Some ISPs put mail in the inbox and bulk foldering during the whitelisting process. In this case what they’re doing is seeing if your recipients care enough about your mail to look for it in the bulk folder. If they do, and they mark the mail as “not spam” then this feeds back to the sender reputation and the IP reputation.
If you’re seeing a lot of bulk foldering of mail, it’s unlikely there’s anything IP reputation based to do. Instead of worrying about IP reputation, focus instead on the content of the mail and see what you may need to do to improve the reputation of the domains and URLs (or landing pages) in the emails.

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April: The month in email

April was a big month of changes in the email world, and here at Word to the Wise as we launched our new site, blog and logo.
DMARC
The big story this month has been DMARC, which started with a policy change Yahoo made on April 4 updating their DMARC policy from “report” to “reject”. We began our coverage with a brief DMARC primer to explain the basics around these policy statements and why senders are moving in this direction. We shared some example bounces due to Yahoo’s p=reject, and talked about how to fix discussion lists to work with the new Yahoo policy. We gathered some pointers to other articles worth reading on the Yahoo DMARC situation, and suggested some options for dealing with DMARC for mail intermediaries. Yahoo issued a statement about this on April 11th, explaining that it had been highly effective in reducing spoofed email. We also noted a great writeup on the situation from Christine at ReturnPath. On April 22nd, AOL also announced a DMARC p=reject record.  We talked a bit about who might be next (Gmail?) and discussed how Comcast chose to implement DMARC policies, using p=reject not for user email, but only for the domains they use to communicate directly with customers. We expect to see more discussion and policy changes over the next few weeks, so stay tuned.
Spamtraps
We wrote three posts in our continuing discussion about spamtraps. The first was in response to a webinar from the DMA and EEC, where we talked about how different kinds of traps are used in different ways, and, again, how spamtraps are just a symptom of a larger problem. Following that, we wrote more about some ongoing debate on traps as we continued to point out that each trap represents a lost opportunity for marketers to connect with customers, which is really where we hope email program managers will focus. And finally, we tried to put some myths about typo traps to rest. As I mentioned in that last post, I feel like I’m repeating myself over and over again, but I want to make sure that people get good information about how these tools are used and misused.
Security
We started the month by saying “Security has to become a bigger priority for companies” and indeed, the internet continued to see security breaches in April, including the very serious Heartbleed vulnerability in SSL. In the email world, AOL experienced a compromise, which contributed to some of the DMARC policy changes we discussed above. In a followup post, we talked about how these breaches appear to be escalating. Again, we expect to hear more about this in the next weeks and months.
Best Practices
Ending on a positive note, we had a few posts about best practices and some email basics. We started with a pointer to Al Iverson’s post on masking whois info and why not to do it. Steve wrote up a comprehensive post with everything you ever wanted to know about the From header and RFC5322. I talked about how companies ignore opt-outs, and why they shouldn’t. I shared a really good example of a third-party email message, and also talked about message volume. And finally, we talked about how and why we warm up IP addresses.
Let us know if there’s anything you’d like to hear more about in May!

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Welcome to our new site

We’re very excited and pleased to launch our redesigned website and blog.
As you can see, we have a new logo and an official color scheme. In addition to the cosmetic changes, we’ve improved the underlying structure. We have pages dedicted to our offerings, including Abacus and information about our consulting services.
We’ve also consolidated a lot of the information spread across different website. The ISP Information page is updated and current (finally! all the Goodmail references are gone). And the ISP specific pages are here instead of over on the wiki.
Two features we’re quite excited about are our wiseWords and wiseTools.
wiseWords is our place to publish more in depth articles about email, delivery and the Internet than the blog. Over time, I expect this to grow to encompas a full email knowledge base. We’ve also published some white papers for download.
wiseTools is the umbrella for our useful email tools, including the tools published at emailstuff.org. They’re still at emailstuff.org, but they’re also here at tools.wordtothewise.com.
We’ve done our best to make sure links transfer from the old site to the new one, but feel free to contact us if you find a broken link.
You may find your first comment on the new blog goes into moderation the first time you post. But once you’ve been approved, comments won’t go through moderation a second time.
Our new website is just the first of many new things we are hoping to roll out in the coming months.

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Delivery and marketing part 2

A while ago I wrote some thoughts about the conflicting requirements of delivery and marketing. I posted something similar over on the Only Influencers list, too. My thoughts generated a very interesting discussion, one that helped me clarify some of my somewhat random thoughts from earlier.
Marketing is about finding mindshare. One way you get mindshare is repetition. But people tune out repetition pretty quickly. Sending the same offers, the same copy over and over again means recipients start to tune things out.  When recipients start tuning out mail, they may not bother opening it, they just read the subject line.  If too many recipients start relying on the subject line then delivery can suffer.
Effective marketing relies on getting mail in front of the target audience. That’s the delivery component. Without inbox delivery, even the best marketing will not work.
No one will see marketing if it is in the spamfolder.
I don’t think you can cleanly separate delivery strategy from marketing strategy, but it’s important to realize they have different constraints and different pressures. When I talk about delivery with a client, I’m talking about getting mail into the inbox. And, most of the time, they’ve come to me because they’re not getting into the inbox and they have to make changes. The genius of their marketing is irrelevant, because no customers see it.
But once mail is in the inbox you can’t just ignore delivery, either. Sure, it becomes less of a pressure on the copy and the marketing strategy, until such time as the mail isn’t getting into the inbox any longer. Then it’s back to working on delivery and maybe having to implement some aggressive data hygiene. Back in the inbox and you can be aggressive on the marketing again.
Successful email marketing requires balancing the constraints of good delivery against the constraints of good marketing.

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