Avoid mass electronic mailings. Use BC's electronic news groups. They are easy to create and use. Utilize that spell checker in Communicator or Simeon. Or perhaps compose your email in Word first and utilize the grammar checker as well.
Most people get electronic reams of emails, and many tend to skim their inboxes quickly.
If you want your email to be read, try to highlight its importance with a subject line that will pique curiosity. What Where When and Why - this makes a message easy to read and digest. There are many folks still putting along the Internet on a 28k modem connection. If you send someone a huge attachment it could take hours to download - a source of great frustration. So unless it's vital to your communication, try to avoid attachments.