I recently realized that some websites which aggregate data on people (the same annoying ones that come up when you google your name) advertise the fact that the email addresses have been "verified", including the fact that emails sent to the address don't bounce.
So that makes me wonder which percentage of spam emails are actually just checking that the email address is valid and active.
So that makes me wonder which percentage of spam emails are actually just checking that the email address is valid and active.