Keep Subject Line to 50 to 80 Characters

Keep email subject lines at 50 or 80 characters for most effective open rate, according to an article posted on Online Media Daily.

MediaPost Publications - Email Analytics Reveal Sweet Spots in Subject-Line Length

My reactions: I wonder if this study took into consideration the platform that the receiver is reading the email. When you have your email client open, you often have your folders or options taking up space on the left side of the screen. Then in the center you have sender info, subject info, date and time.

The author, David Goetzl, gives the example: "Find out Secrets to Spice up your Barbecue this weekend and all Summer Long and enter to win a New Weber Grill."

Who has space for that kind of text in their subject line?