The subject line should communicate exactly what the email is about so that the recipient can prioritize the emails importance without having to open it. For example, writing “Do you have a sec?” is vague, says Augustine, since the reader will have to open the email or reply to figure out what you want.

What does subject line mean in writing?

What is the subject in an email? The subject line of an email is the single line of text people see when they receive your email. This one line of text can often determine whether an email is opened or sent straight to trash, so make sure its optimized toward your audience.

Where do you type the subject line?

The subject line is usually placed between the salutation and the body of the letter (with a blank line in between).