Email has significantly changed not only the ways we communicate, but it has changed some basic proclivities as well. The need, real or perceived, to compose or reply quickly to email has reduced much of the structure which that defined written communication in the past. Most senders will use at some point as little as one word or even an abbreviation (e.g., FYI, OK) as the entire content of an email.
In order to communicate clearly and effectively, some basic rules should apply to email sentences. Make sure that all sentences include the necessary parts of speech. All sentences should have at least a noun and a verb. Instead of "OK," say, "That is good," or "I will." Better still, use an adjective or adverb to better define a sentence. And even better, have a direct object for your sentences, when appropriate. Notice the difference for answering a request to read a proposal:
OK
Definitely
I will
I will definitely read.
I will read it. (pronoun)
And best of all, use a noun object: "I will read the proposal." Using articles also enhances your communication. One of the most abandoned aspects of writing and grammar is the use of the article: "Please read attached" is written better when you say, "Please read the attached." --------------------------------------------------------------------------------------------------------------
"Good Netiquette Writing!"