An in-product alert was posted on October 17 as a heads up to notify all customers that the IRS would be shutting down the 1040 MeF system for annual maintenance on Saturday, November 17, 2018 at 11:59 PM EST.

We generally post in-product alerts when version blocking is implementing, which is when you would see e-file blocking implemented in a more common scenario.  This type of blocking throws an error when attempting to transmit a return on an older version which would result in an e-file rejection.

However, situations like this one when we are approaching a server shutdown deadline for sending and receiving, we do implement an e-file block closer to the deadline in order to allow all transmitted returns to complete the acknowledgement process.

Any e-file blocking implemented did not affect this filing.  If it had you would have received a transmission failure message that would have prevented you from transmitting the return to Lacerte. In this case, the return did make it through, but was not picked up by the IRS which then resulted in a rejection status.