Currently Being ModeratedAug 17, 2013 12:20 PM (in response to Michel2203)
Who is your mail provider?
You can try force quitting your mail. Double tap the home key and the icons will line up on the bottom of the screen. Hold your finger down on the mail icon until it starts to wiggle. You'll see a little minus in a red circle. Tap on that to close the app. Click the home key again to exit that mode.
Try downloading your mail again.
Sometimes when I try to get my mail on other wifi's it won't come through. FOr example using an AT&T hotspot and my yahoo mail. So may just be an incompatibility with providers.
You can also try removing and then readding your mail account. If there's a glitch, that sometimes clears it up.