How to Make Sure Important Emails Stay Out of Your Spam Folder

Today, Gizmodo explains how to train Gmail, Outlook/Windows Mail, and Apple Mail on what shouldn't be considered spam.

They left out filter rules in Gmail -- it's pretty easy to create a filter rule in Gmail where the action is "never send to spam" -- this comes in very handy for me, as a lot of the mailing lists I'm on talk about spam and sometimes include samples. Though they might legitimately be spam, if they go to my Gmail spam folder, it makes it hard to see them.