EOM Headlines:

When you have a very short message to convey, you can use the EOM, or End Of Message, technique. This is possible when you can put all the relevant information in the subject line, followed by the letters "EOM". This lets the recipient know that he or she doesn't even have to open the email, all the information is right there. The subject line basically is the message.
Example:
Subject: 10/5 Meeting, 10am, Conf. Rm. A, On PASS Procedure EOM