ALL EMAILS DOWN (WHAT ARE RESELLERS SUPPOSED TO DO?)

ALL EMAILS DOWN (WHAT ARE RESELLERS SUPPOSED TO DO?)

I have been getting calls from my clients about email services being down.  Unable to send or receive is the issue they all are calling in with.  As a reseller of your services, what am I supposed to say to them why their email service is down?  I may not have any clients after this.  Can you tell me what is going on so I can pass that information no to them?  Do you have a timeframe as to when this is expected to be resolved? Please respond asap because as I said before I may not have any clients after this.