Great “oops we made a mistake” example from Handy just floated into my inbox. And true to form, we’re much more interested in the “oops” subject line than the first one that came hours before this. I’m willing to bet that open and response rates are much higher on the 2nd send…. not that you should intentionally make a mistake so you can benefit from an “oops” email.
What I really like is the use of preview text to continue the oops message without affecting the actual email itself:
Nice work, Email Team at Handy!