Question : Email is being received but cannot send out

I have a client with Exchange 2007 and they can receive external email but cannot send out.  I reconfigured the Send Connector but still no go.  They have SBS2008 OS but I don't think that has anything to do with it.

Answer : Email is being received but cannot send out

Found the issue, the port 25 was denied for going out.  Once I opened that port up, email was flowing.