Tips for communication by e-mail include which of the following?

A) Aim for a professional tone and quality (including using a spell checker) .
B) Print and review all messages before sending.
C) Request acknowledgment or feedback for all important messages.
D) Remember to disclose your paralegal status.
E) All of these choices are correct.

All of the options provided are considered good practices for communication by e-mail, especially in a professional or legal setting. Maintaining a professional tone, ensuring messages are error-free, confirming receipt of important communications, and disclosing one's professional status (such as being a paralegal) are all important to effective and responsible email communication.