Hmm odd. I had a draft from this morning (I took a photo on my phone, attached, then went to desktop later to type the rest up). It would not send and kept popp

Hmm odd. I had a draft from this morning (I took a photo on my phone, attached, then went to desktop later to type the rest up). It would not send and kept popping up that error you mentioned while typing. As soon as I deleted the attachment, I could send it. New emails with nothing attached work fine too in all 3 accounts.