Yes I did.  From the efile homebase, the attachment icon is present, so I know I did it correctly, but still getting error message and reject.  I have gone back over the 1116 and found nothing.  The error/rejection message only appears to say that I need to attach 1116 when efiling --- which I have done.

One of the client's return is not that big of a deal, being only for the federal.  But the other files in multiple states which require the federal return as part of their filing. So... before the 18th, I will be printing a 1/2 ream of paper and making that mad dash to the post office.  

Thankfully, my local post office does have a kiosk from which I can puchase postage (postmark) and mail stuff in the middle of the night.