All attachments blocked

I'm not real familiar with Fortimail. However, ours has started blocking ALL attachments it appears where before this wasn't the case. They are being placed in system quarantine. How can I determine why they are being blocked and make the change? This is in gateway mode. I've created a group of users on exchange to allow higher message sizes/attachments to certain users and all are being quarantined by fortimail now. I've increased the message size in fortimail appropriately.