Personal Mails

Hi..

Is checking personal mails (yahoo,hotmail,etc..) during office hours consider a violation? Well haven’t been yet finish my Policy on this, but how bout on you guys. What would be the best solution for this? should I allow it? or not? This question has been bugging me for days now. I’ve tried weighing things what would be the benefits if I do permit this, or not? But still undecided..

Hope someone can clear my mind…

Thanks