How many email accounts do you have on your device? Is this only happening with the Hotmail account?
If it's the only account with the issue. Delete that account and then re-add it.
The difference between stupidity and genius is that genius has its limits.
When you take things for granted, the things you are granted, get taken.
Even a mosquito doesn't get a pat on the back until it starts to work.
Too many people miss the silver lining because they're expecting gold.
[BES 5.0.3 / GroupWise 2012 HP2]