E-Mail Applied: Change the Subject

You may want to keep subject lines even shorter. MailerMailer released a study in late 2007 (see chart below) that examined open and clickthrough rates for subject lines less than 35 characters vs. subject lines longer than 35 characters.

Craft Your Subject Lines
Too many companies put all their focus on creating their e-mails, leaving the subject lines as last-minute inclusions to the message.