This is an important part in making this list a comfortable place to raise questions and to speak personally. Please translate all but the most common Hebrew words that you may use in your message. As people on this list come from different backgrounds, many have limited knowledge of the transliterated Hebrew words you use. Keep your signature file down to at most four lines. Long signatures take up lots of wasted space, and tend to be annoying.
Some people pay for their email.
Please quote others' posts only to the extent needed. It's rarely necessary to include someone else's post in its entirety. Reproduce only the portion that's relevant to your response, or else paraphrase. Most of the d'vrei torah for this list are written by 'amateurs'. What a wonderful opportunity.