The [[E-mail subject abbreviations|subject of an e-mail message may contain such an abbreviation]] to signify that all content is in the subject line so that the message itself does not need to be opened (e.g., "No classes Monday (EOM)" or "Midterm delayed <EOM>").
EOM can also be used in conjunction with ''no reply necessary'' or NRN to signify that the sender doesn't require (or would prefer not to receive) a response (e.g., "Campaign has launched (EOM/NRN)") or ''reply requested'' or RR to signify that the sender wishes a response (e.g., "Got a minute?