The 8911 was not available for e-file until about 3/8/2018. I know of no way to verify that it was actually transmitted but there is no reason to believe that it was not. Because, adding the 8911 form also required changes in the IRS e-file software (MeF system) and changes in the main IRS processing system to accept that form, there is also a chance that the IRS e-file received the form but lost it or failed to forward it to the main processing system.
I know of no way to track any specific form to see where and who lost it - the IRS was updating there systems software almost ever Sunday night during that period.
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**
