Instead of going through and issuing a slew of reminders, figured this would reach the majority quicker.
The ProVarinati image that some folks are using is too large. As a reminder, signature images can be no larger than 400x65, and the height of the ProVarinati image is 108 pixels.
Here's the original being used by some:
Image needs to be shrunk folks.
I took the image and shrunk the size so it meets ECF standards.