On iPhones and iPads, the "Push" setting automatically sends mail to you. However, some servers don't support it, or low-power modes might disable it. This message has not been downloaded from the server.
Go to your account settings and verify your incoming mail server (IMAP/POP) and port numbers . If the app asks for a password, re-enter it even if you think it's saved. 2. Fetch vs. Push Settings (Mobile Specific) why does my mail not download from server
Getting a "message has not been downloaded from the server" error can be incredibly frustrating when you are trying to stay on top of your inbox. This issue usually points to a breakdown in communication between your device and the email provider's server. On iPhones and iPads, the "Push" setting automatically