Email and messaging
Terms related to email and messaging, including definitions about instant messenger and words and phrases about email servers, storage, spam and mobile access.- backscatter spam - Backscatter spam, also called misdirected bounce spam or NDR spam, is a strategy for sending unsolicited email messages that takes advantage of the fact that certain types of mail transfer agent (MTA) programs return the entire message to the sender when a recipient's email address is invalid.