Hello Eve -- Oh, this is new to me. I haven't encountered this kind of issue yet or got a report from one of my subscribers. As far as I know, there are times when the email format changes when it's being opened from a different inbox provider (like applemail or Microsoft outlook) due to differences in platform attributes. You might need to reach out ConvertKit support so that they ycan check it for you. You can reach them here directly: https://convertkit.com/support26

Robert
Free Diver | Adventurer