I have an email address, firstname.lastname@example.org that I use to field general security questions. I can’t use this for support questions, or licensing questions though. We have trained support people who do product support full time and these people have the most up to the minute information required to support our products.
For general security questions I am delighted to explain what things mean, and how they work though.
Emails advertising products and services that are received at that address are automatically flagged as the spam they are!
Director of Technical Education
Author ESET Research, ESET