Microsoft Exchange Active Sync issue when roaming

I bought new Samsung Galaxy Note 2, Last week I went to a different state ( roaming). During roaming my office outlook mail is not syncing. Whole purpose of having Email on phone is gone. I don't think it's problem with the device/service provider. Gmail ,yahoo or internet is working without any issues. I was able to read emails on my other phone (iphone 3g) without issues (when roaming). Can someone help me on this?