Android Lollipop - "Couldn't send attachment"
It was about 4 months ago that I created an email with several photos from the photos app and sent it or at least tried to, it acted like it worked but I realized it didn't when I was looking at sent mail. The message would have been close to the size limit for gmail. I was in one of those locations where my phone would constantly jump between towers and disrupt internet traffic when I sent it. I figured it might not go through until I had a better connection. I don't remember if I could see it in my outbox or if it just disappeared (if I could see it I'm sure I at least tried to deleted it). Now, 4 months later after updating to lollipop, I find my phone haunted by constant errors about this ghost email which doesn't show up in my drafts or outbox and whose attachments have been deleted as android now bitches when you have less than about 1GB of free space.
I haven't rooted my phone but I could. Is there a particular file or sqlite db that needs an exorcism? Should I just delete the gmail app and all it's data and re-install it? Can I fix it over ADB somehow?