Give the email an objective
An email that we write has an objective, which is also ours:
inform? Obtain a reply? Provoke an action? Clearly defining this
objective means that the expected response is clear: asking a
question which calls for a reply, gives a delay, requests
something … Very often, we complain that there is no answer. But this is
because we haven't asked for one clearly!
Emails with multiple subjects are often only partially dealt
with. It's much easier to avoid several questions that are mixed up than
one well asked question. So it's often more effective to
choose THE key point to be communicated or THE request that
needs an answer.
A simple exercise: reread your email before sending it and ask
yourself: what does the receiver already know? What is really important?
Does the receiver know exactly what I want from him?
You will probably be able to eliminate 30 to 50% of your initial
message.