Three ways spammers get your address
Paul explains 3 ways spammers get your email address.
Related Posts
What is an email address? (part three)
- steve
- Mar 24, 2009
As promised last week, here are some actual recommendations for handling email addresses.
First some things to check when capturing an email address from a user, or when importing a list. These will exclude some legitimate email addresses, but not any that anyone is likely to actually be using. And they’ll allow in some email addresses that are technically not legal, by erring on the side of simple checks. But they’re an awful lot better than many of the existing email address filters.
What is an email address? (part one)
- steve
- Mar 20, 2009
Given we deal with email addresses every day, dozens or thousands or millions of them, it seems a bit strange to ask what an email address is – but given some of the problems people have with the grubbier corners of address syntax it’s actually an interesting question.
There are two real standards that define what is a valid email address and what isn’t. The most complex is RFC 5322 – Internet Message Format, which describes all sorts of things about the structure of an email, including what’s valid to put in From: and To: headers. It’s really too liberal in what it allows an email address to look like to be terribly useful, but it does provide for one very commonly used feature – the friendly from where the name that’s displayed to the recipient is not just the email address.
Organizing the mail flow
- laura
- Mar 11, 2009
I get a lot of email. On a typical day I will get close to 2000 messages across my various work and personal accounts. About 60 – 70% of that mail is spam and caught by spamassassin or my mta filters and moved into mailboxes that I check once a day for false positives. About 15 – 10% of the remaining mail is from various discussion lists, and those are all sorted into their own mailboxes so I can keep conversations straight. The rest of the email is divided between mail directly to me and various commercial lists I have opted in to.
Up until recently, the commercial mail was all just dumped into my inbox. Nothing special happened to it it just sat there until I could read it. Recently, however, the volume of commercial mail has exploded, swamping my inbox. After losing track of some critical issues, I sat down and fixed my mail filters. Now, all my commercial and marketing mail (ie, mail I signed up for with tagged addresses) is now being filtered into its own mailbox.
There are two takeaways here.
One: the volume of commercial mail has increased significantly. Companies who were previously mailing me once a month are now mailing me twice a week. This contributed to the clutter and resulted in me pushing all commercial mail out of my inbox. I don’t think this increase is limited to just my mailbox, I believe many recipients are seeing an increase in commercial and marketing email, to the point where they’re finding it difficult to keep up with it all.
Two: Recipients have a threshold over which too much email makes their mailbox less usable. Once this threshold is reached they will take steps to change that. In my case, I can just filter all the commercial email as I use tagged addresses for all my signups. In other cases, they may start unsubscribing from all the mail cluttering their mailbox or blocking senders.
It is the tragedy of the commons demonstrated on a small scale.