Email+ has suspended support for custom image widths. Percentages can no longer be used. They were proving to be too inconsistant when displaying in Oullook and other email clients. Only pixel values are now suppported in Email+. There were a few emails in the process of being created that had used percentages, those percentages were converted to "300px". A message has been been posted in Email+ to remind users to review images if custom sizes with percentages were used.
