2. No e-mail should ever be longer than one screen of information. If it means scrolling down, you’re not being concise. [Agree. The size of a "screen" varies these days, of course, since some people use iPhones and BlackBerrys almost exclusively, but if your e-mail is busting out of an entire computer screen then you need to trim it down immediately].
3. One subject per e-mail. When I’ve dealt with it, I want to delete
it or file it and I can’t do that if your e-mail contains 10 action
items, one of which is going to hang out there for six months. [Agree. In general, I find that people will respond and take the action you are seeking if you keep it simple. If it is a multi-part, complicated request, it often gets pushed to the "get around to it when I have more time to deal with this" pile.]
4. E-mail is the wrong place for emotional outbursts. [For sure, because although you will soon be calm about whatever the subject was, your e-mail outburst will live forever].
8. Because you sent it doesn’t mean I got it. Because I got it
doesn’t mean I read it. Because I read it doesn’t mean I understood
it. Because I understood it doesn’t mean that I agree with you. Check
for closure on your communications. [Well said.]
10. Don’t send e-mail when a short phone call would do the job better. [Disagree. Just send me a short e-mail that I can deal with when I'm ready!]