Thank you. This answers my core question (and I'm sure there are others on CC who have the same concern): do I risk my customers not seeing my older emails display correctly if I delete those images from my library. MANY of the images I use are simple one-offs, and I would not reach for them again. Knowing this, I can now delete them from my Library where they are just taking up space and making it harder to rummage through looking for the images I DO keep and re-use. I will mark this as Accepted Solution. Thanks for your aid, William.
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