I have just sent a "Page" file to my 3 addresses, not arrived, also did a printscreen of same doc, once in Photos, sent it as an email, none of them have arrived???????????
Tap the Mailboxs/Back button at the top left of the email list (in Landscape).
Do you see and OutBox with a number beside it? The Outbox only appears when there are pending emails (waiting to be sent). If you see them, open the Outbox and the emails and try sending again.