Fetch new mail to your iPhone/ iPad mail app is really helpful. That’s call push mail service, that’s catch all incoming mails to device by push mail from mail server. In iOS 9, Auto push mail option only available for iCloud mails. But you can do that for Gmail, Yahoo, Aol, Exchange by simple setup configuration explained in this tutorial. In any case if Email push not working or stop to your Mail app, Check the below mail app settings and configuration listed in below.
Fixed: Email Push not working on iPhone, iPad Mail App in iOS 9
Enable Push for New Mail
Next, Go for all individual Mail services and Set it on Push from Three options (Push, Fetch and Manual)
Next, if you want get email on your time schedule (Only for the Fetch Options).
Enable Background App refresh
In case you stop all app background refresh on iPhone/ iPad. Re-enable it for Mail app.
Check Account Login
Re-login Mail Account again after remove/ Delete that. Go to the Settings > mail, Contacts, Calendars > Mail > Delete Account. Next, setup new Mail in Mail App.
That’s it. Still are you suffering from Email Push not working or New Mail can’t auto fetch, Email Push Doesn’t Work. Contact your Mail provider.