What is the procedure for deleting photos saved from Mail?
What is the procedure for deleting photos saved from Safari?
Go to the Photos app (the default one, with the flower) and find the ones you have downloaded from safari/mail. Then edit->delete. It seems that if those photos have long names or some characters in the names are not recognized, the import has a problem. I myself had pictures with japanese letters. So whenever I tried to plug it in the import didn't work (for some reason).