I recently signed up for the Overstock.com email list and received a message last week with a simple subject line that grabbed my attention.
It read: EMAIL-ONLY SALE
A few quick comments here:
1. On a basic level, I like the focus and promotion of a special sale for email subscribers. Too often list members get fatigued and question why they are on a mailing list in the first place. Rewarding them, and providing a little something special for letting you into their inbox is a very nice gesture.
2. ALL CAPS: On a first view, this grabbed my attention, however I wouldn’t recommend it. Some email filters may view this as spammy and it may never get to the inbox. There goes the nice promotion and simple subject. I don’t think anything is lost with just having: Email Only Sale
3. One way to make this more enticing would be to add some time sensitivity. e.g. Email Only Sale – 3 Days Left!
Not a bad effort though by Overstock.com. With subject lines in particular, it’s always good to do subject line testing to achieve higher engagement.