Spamtraps are not the problem

Often clients come to me looking for help “removing spamtraps from their list.” They approach me because they’ve found my blog posts, or because they’ve been recommended by their ISP or ESP or because they found my name on Spamhaus’ website. Generally, their first question is: can you tell us the spamtrap addresses on our lists so we can remove them?
My answer is always the same. I cannot provide a list of spamtrap addresses or tell you what addresses to remove. Instead what I do is help clients work through their email address lists to identify addresses that do not and will not respond to offers. I also will help them identify how those bad addresses were added to the list in the first place.
Spamtraps on a list are not the problem, they’re simply a symptom of the underlying data hygiene problems. Spamtraps are a sign that somehow addresses are getting onto a list without the permission of the address owner. Removing the spamtrap addresses without addressing the underlying flaws in data handling may mean resolving immediate delivery issues, but won’t prevent future problems.
Improving data hygiene, particularly for senders who are having blocking problems due to spam traps, fixes a lot of the delivery issues. Sure, cleaning out the traps removes the immediate blocking issue, but it does nothing to address any other addresses on the list that were added without permission. In fact, many of my clients have discovered an overall improvement in delivery after addressing the underlying issues resulting in spamtraps on their lists.
Focusing on removing spamtraps, rather than looking at improving the overall integrity of data, misses the signal that spamtraps are sending.

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Six best practices for every mailer

People get into all sorts of details when talking about best practices. But so much of email depends on the type of email and the target market and the goals of the sender. It’s difficult to come up with universal best practices.
I’ve said in the past that I think that best practices are primarily technical. I don’t believe there is a best frequency or a best time to send mail or a best image to text ratio.
My top 6 best practices every marketer should be doing (and too few are).

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Dear Email Address Occupant

There’s a great post over on CircleID from John Levine and his experience with a marketer sending mail to a spam trap.
Apparently, some time back in 2002 someone opted in an address that didn’t belong to them to a marketing database. It may have been a hard to read scribble that was misread when the data was scanned (or typed) into the database. It could be that the person didn’t actually know their email address. There are a lot of ways spamtraps can end up on lists that don’t involve malice on the part of the sender.
But I can’t help thinking that mailing an address for 10 years, where the person has never ever responded might be a sign that the address isn’t valid. Or that the recipient might not want what you’re selling or, is not actually a potential customer.
I wrote a few weeks back about the difference between delivery and marketing. That has sparked conversations, including one where I discovered there are a lot of marketers out there that loathe and despise delivery people. But it’s delivery people who understand that not every email address is a potential purchaser. Our job is to make sure that mail to non-existent “customers” doesn’t stop mail from actually getting to actual potential customers.
Email doesn’t have an equivalent of “occupant” or “resident.” Email marketers need to pay attention to their data quality and hygiene. In the snail mail world, that isn’t true. My parents still get marketing mail addressed to me, and I’ve not lived in that house for 20+ years. Sure, it’s possible an 18 year old interested in virginia slims might move into that house at some point, and maybe that 20 years of marketing will pay off. It only costs a few cents to keep that address on their list and the potential return is there.
In email, though, sending mail to addresses that don’t have a real recipient there has the potential to hurt delivery to all other recipients on your list. Is one or two bad addresses going to be the difference between blocked and inbox? No, but the more abandoned addresses and non-existent recipients on a list there are on a list, the more likely filters will decide the mail isn’t really important or wanted.
The cost of keeping that address, one that will never, ever convert on a list may mean losing access to the inbox of actual, real, converting customers.
 

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Data hygiene and bouncing zombies

There are a number of folks who tell me there can be no zombie addresses on their lists, they aggressively remove any address that bounces. The problem is that zombie addresses don’t bounce, at least not always. And even when ISPs say they have a policy to bounce email after a certain period of time with no access, that’s not always put into practice.
How do I know that ISPs don’t always deactivate addresses on the schedules they publish? Because I have seen addresses not be deactivated.
I have addresses in a lot of places that I go for long periods of time not checking. It’s rare that they’re taken from me or reject mail – most of the time they’re special test addresses I use when diagnosing issues. This post is based on my experiences with those addresses and how abandoned addresses are treated at some ISPs.
For Gmail I have two examples of addresses not being deactivated.
In July 2011, we set up a test address to look at how Gmail was handling authentication. We sent a matrix of different test emails to it, with valid and invalid SPF and DKIM signatures. We pulled the data from the account. I don’t know for certain when the last time I logged in, but it was August or September of last year. So we have an address that has been dormant since September 2011.
I just sent mail to the account and google happily accepted it.
Mar  2 07:03:22 misc postfix/smtp[11770]: 11CA12DED3: to=<wttwtestacct@gmail.com>, relay=gmail-smtp-in.l.google.com[74.125.127.27]:25, delay=1.8, delays=0.25/0.02/0.56/0.93, dsn=2.0.0, status=sent (250 2.0.0 OK 1330700602 x8si8608852pbi.66)
I have another google account (apparently) that my records show I set up sometime in 2010. The login info was saved October 2010. I don’t know when the last time I logged in was, but given I’d forgotten the existence of the account it’s a good bet that it has been more than a year. That account is also accepting mail as of today.
Mar  2 07:06:25 misc postfix/smtp[11836]: 8D90C2DED3: to=<phphendrie@gmail.com>, relay=gmail-smtp-in.l.google.com[74.125.127.27]:25, delay=1.6, delays=0.26/0.02/0.68/0.66, dsn=2.0.0, status=sent (250 2.0.0 OK 1330700785 a8si4075740icw.96)
For Hotmail I also have quite a bit of history and information. I signed up for my first Hotmail account in 1997. That was an account I used the address to post to usenet, but I didn’t actually use it for mail. I’d check it occasionally (usually when someone said in the newsgroup that they were going to email me) but it wasn’t an address I used regularly. As I moved from posting regularly in usenet, I started checking that account even less.
For a while, if I went more than 6 months checking my Hotmail account they would make me “re-claim” it. What would happen when I’d log in is I’d get a message along the lines of “well, we disabled this account due to inactivity, do you want it back?” I’d say yes, have to go through the setup process again and it would be my account. Mail was deleted during the disabling, and I am guessing they rejected anything new going to that account. I went through this dance for 4 or 5 years. I even had my calendar set to remind me to login every 6 months or so. There was some sentimental value to the address that kept me logging in. I have that same username at every major free ISP: Gmail, Hotmail, Yahoo and AOL, so it’s “my” address.
About 6 or 7 years ago, that behavior changed. I stopped getting the request to reclaim my account. Instead I could just log in. I’d still have mail (mostly spam as the address is on *lots* of lists and millions CDs). I still check it irregularly. I don’t have any idea when the last time I checked it was, but I think it’s been since at least November and probably longer back than that. Hotmail is still accepting mail for that address as well.
It’s anecdotal evidence, at best, but it ‘s the type of evidence that is acceptable even when it’s anecdotal. There are some addresses that are abandoned for long periods of time at the free mailbox providers and they’re are not all automatically pulled from the ranks of active addresses.
What does this mean for senders? It means that data hygiene has to go beyond just removing addresses that bounce. ISPs are not disabling addresses consistently enough for marketers to be able to trust that all addresses on their list are active just because they are accepting email.
This is the root of the recommendation to put in a hygiene program, this is why senders need to look at who is actually engaged with their brand and make some hard decisions about shooting zombies in the head.

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