Students, when you’re emailing teachers, counselors, college interviewers, or anyone that you’re hoping will take you and your message seriously, never compose anything that reads like a text message. In fact, even your text messages to those people probably shouldn’t read like text messages.
Texting is fine for just getting a point across to someone you know. But when you need to communicate, stick with real writing.
And here’s a past post on how to write a great email message.