Test from iPhone now (6s)I tried several from the camera roll on my iphone and got the same error message each time; "The upload file is too large for the server to process"
Apple could solve the problem by adding a "resize option/copy as"in the edit option in Iphotos. Per your request, I'll try another upload with no email to resize from the iPad....(which didn't work. A resize did work) And I agree with you on small size photos since on a screen small files still look great. I guess it's going to be hit or miss from the phone as I just realized this photo was loaded off my camera onto the iPad a few years ago and I'm sure I downsized it substantially.