I posted this earlier but it appears that it disappeared.

We have a client that one of our preparers completed their 2017 tax return and had them sign the 8879.

When they went to file it was rejected because 2017 is not one of the 3 current years available for e-filing.  The clients are unavailable for signing again (for personal reasons I do not want to post).  Can we submit the signed 8879 as a valid signing document?

Thanks

Dusty Ernie