Type your message into the large input window Click Check Spelling if you want to correct spelling mistakes. If you don't do this it could be possible for someone in the lab to use your Runner Mail account for nefarious purposes. Other possibilities are discussed in the Runner Mail help Click the Help button. Because of e-mail overload many email users prioritize and read their mail as needed. Your subject should help them do that.
Spammers frequently use Emergency or read immediately as subjects.
Experienced e-maile users automatically delete those messages. Identify yourself to the receiver at the top of your message. Don't send messages to someone who has no need to for the message.