Contact addresses and spam

One of the challenges anyone doing business on the internet faces is how to provide contact information so that potential customers can reach you in a form that spammers can’t easily abuse. Contact forms are the classic method, but they can (and are) abused by spammers. We decided to try something different. About 2 months ago, we started using rotating contact addresses. Every day a new address is deployed on the contact form on our website. Each address is valid for a fixed period of time, and is then retired.
This seems to be working well for us. Spammers are harvesting the email addresses, but because they are only valid for a fixed period of time, the amount of spam in my mailbox is not overwhelming. I am spending less time searching for sales mails through spam. An interesting side effect is I can actually see who is harvesting addresses and spamming.
It’s not perfect, I’m still getting spam to that address. But it’s spam at a level where I’m not losing real mail.

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Fake privacy policies

I sign up at a lot of websites and liberally spray email addresses across the net. These signups are on behalf of one customer or another and each webform gets its own tagged and tracked email address. I always have a specific goal with each signup: getting a copy of a customer’s email, checking their signup process, auditing an affiliate on behalf of a customer or identifying where there might be a problem in a process. Because I have specific goals, I am pretty careful with these signups and usually uncheck every “share my email address” box I can find on the forms.
In every case the privacy policies of my clients and the things they tell me are explicit in that addresses will not be shared. It’s all opt-in, and email addresses are not shared without permission. Even in the cases where I am auditing affiliates, my clients assure me that if I follow this exact process my address will not be shared. Or so the affiliates have assured them.
Despite my care and the privacy policies on the websites, these addresses occasionally leak or are sold. This is actually very rare, and most of the websites I test never do anything with my address that I don’t expect. But in a couple cases these email addresses have ended up in the hands of some hard core spammers (hundreds of emails a day) and there was no useful tracking I could do. In other cases the volume has been lower, and I’ve watched the progression of my email addresses being bought and sold with morbid fascination.
Today an address I signed up at a website about a year ago got hit with multiple spams in a short time frame. All came from different IPs in the same /24. All had different domains with no websites. Whois showed all the domains were registered behind a privacy protection service. Interestingly, two of the domains used the same CAN SPAM address. The third had no CAN SPAM address at all. None of these addresses match the data I have on file related to the email signup.
It never ceases to amaze me how dishonest some address collection outfits. Their websites state clearly that addresses will not be bought an sold, and yet the addresses get lots of spam unrelated to the original signup. For those dishonest enough to do this they’ll never get caught unless recipients tags and tracks all their signups. Even worse, unless their partners test their signups or their mailing practices, the partners may end up unwittingly sending spam.

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12% of email recipients respond to spam

Twitter and some of the other delivery blogs are all abuzz today talking about the consumer survey released by MAAWG (pdf link, large file) looking at end user knowledge and awareness of email security practices.
The survey has a lot of good data and I strongly encourage people to look at the full report. There are a couple of results that are generating most of the buzz, including the fact that nearly half of the respondents have clicked on a link or replied to a spam email. Additionally, 17% of respondents said they made a mistake when they clicked on the link.
The magic statistic, though, is that 12% of the respondents said that they responded to spam because they were interested in the products or services offered in the spam. This, right there, is one of the major reasons why spam continues and is a growing problem. Out of 800 people surveyed, almost 100 of them were interested enough in the products sold by spam to respond positively. There are roughly 1.6 billion people on the Internet, which gives spammers a market of 200 million people for their spam.
Other studies have seen similar responses, that is consumers do respond to spam. Most surveys don’t define spam, however, and given a lot of consumers call “mail I don’t like” or “all commercial email” as spam it’s hard to know what the respondents are responding too. In some studies, some respondents even defined mail from companies that they had given their email address to, but had not explicitly asked for email from as spam.  In this study MAAWG did request how the respondent defined spam. Of the respondents, 60% say spam is mail they did not solicit, and 41% say spam is mail that ends up in the spam folder. Given that 60% of respondents define spam as “unsolicited email” it is possible that some people are responding to mail they never requested.
Sad news for those of us who were hoping that lack of consumer response would make spamming unprofitable enough that spammers would stop.
The crosstab between “how do you define spam” and “how do you react to spam” may be an interesting data set to see.

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What Mark Said

Mark Brownlow skewers the arguments from opt-out proponents. A definite must read.

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