[seanhunter]

> I wonder how Oracle knows which contacts to email.

It's oracle. They know how to get hold of people. Their business model has involved sending threatening letters/emails to people to try to get them to cough up additional license fees since at least the early 90s. It used to be "let's talk about your oracle license to check you aren't running it on more cores than you told us about", now they have just changed to threatening people about JDK licensing. On the database side, for some time their tendency to threaten/harass their customers has been so bad that if you're in tech leadership you'll find there is a cottage industry of consultants who cold-call you offering to help you with your oracle license audit[1] just because its so common and unpleasant for businesses to have Oracle audit their license usage trying to squeeze more cash out of you.

[1] Whether or not you have an audit or indeed use oracle products at all.