Filters and windmills

A colleague of mine was dealing with a client who is experiencing some difficulty delivering to the bulk folder. Said client spent much of a one hour phone call repeating “This is not how a free society works!!”
After the call my colleague commented, “I refuse to get ranty about filter systems.”
I know that filters, and the people who write and maintain them, are a frequent scapegoat for senders. The filters are always the problem, not anything the senders do.
Now, I’ll be the last person who will claim spam filters are perfect, they’re not. Filters sometimes do unexpected things, sometimes they do boneheaded things, sometimes they are broken.
We can’t forget, though, that filters perform a vital role in protecting users from malicious emails. Phishing emails, scams, fake products, viruses are a constant threat. Many end users don’t need to worry about this because filters are so good. But an unfiltered account can get thousands of scams and spams a day (ask me how I know).
Most of us in the delivery space can tell when a filter is working as intended and when there’s an underlying problem. And when the filter is working as intended there’s not a lot of use complaining about them. Ranting about filtering systems often delays a resolution. Senders that focus on what they can control tend to have more success reaching the inbox than those senders that focus on ranting about filtering systems.
Tilting at windmills doesn’t get the mail through.

Related Posts

Spamhaus rising?

Ken has a good article talking about how many ESPs have tightened their standards recently and are really hounding their customers to stop sending mail recipients don’t want and don’t like. Ken credits much of this change to Spamhaus and their new tools.

Read More

Don't spam filter your role accounts

A variety of “amazon.com order confirmations” showed up in my inbox this morning. They were quite well done, looking pretty close to real Amazon branding, so quite a few people will click on them. And they funnel people who do click to websites that contain hostile flash apps that’ll compromise their machines (and steal their private data, login and banking credentials then add them to botnets to attack other sites and so on).
Not good. Just the sort of urgent, high-risk issue that ISP abuse desks really want to hear about. I sent email about it to the ISPs involved, including a copy of the original email. One of them went to iWeb, a big (tens of thousands of servers) hosting company.
This was the response:

Read More

Content, trigger words and subject lines

There’s been quite a bit of traffic on twitter this afternoon about a recent blog post by Hubspot identifying trigger words senders should avoid in an email subject line. A number of email experts are assuring the world that content doesn’t matter and are arguing on twitter and in the post comments that no one will block an email because those words are in the subject line.
As usually, I think everyone else is a little bit right and a little bit wrong.
The words and phrases posted by Hubspot are pulled out of the Spamassassin rule set. Using those words or exact phrases will cause a spam score to go up, sometimes by a little (0.5 points) and sometimes by a lot (3+ points). Most spamassassin installations consider anything with more than 5 points to be spam so a 3 point score for a subject line may cause mail to be filtered.
The folks who are outraged at the blog post, though, don’t seem to have read the article very closely. Hubspot doesn’t actually say that using trigger words will get mail blocked. What they say is a lot more reasonable than that.

Read More