If it could create the excel document for any reason you would see a failure in the results brought back.

My next suggestion would be to run the process manually and...

There is no time-out in RS by default. If you go into the reports subscription tab is should tell you whether it was successful or if it failed.

You should...

10MB is too large for email if you know your etiquette. A filter someplace is going to stop that transmission, if your not, then your client is. You...