The 99 tips in this article make up the best in email practices. From how to ethically use the ‘BCC:’ to what attachments will make your mobile emailing compatible with everyone else’s, this list covers everything you need to know about emailing. —Hacking Email: 99 Email Security and Productivity Tips (IT Security)

I don’t really care for the proscriptive tone of this document, but it has proved pretty popular online. I’m assuming it originated with ITSecurity, but the full text has been reproduced elsewhere.

I didn’t find much new in the “Etiquette” section, but I particularly like the section on “Productivity, Folders, and Filtering.”

Full disclosure: One reason I’m blogging this document is because tip 99 includes a link to Email: Ten tips for writing it effectively, which started out as a make-up project for one of my technical writing students many years ago.