Been in the wastes of the Finnish Lapland for a while and only just seeing this on return to civilisation.
The error message received was:
Delivery to the following recipient failed permanently:
####@zencart.com
Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the server for the recipient domain zencart.com by zen-cart.com. [104.236.245.70].
On the automated tools, I thought they would just present the contributor with a license in a manner similar to the two tests currently done and then the team can decide whether to merge or not.
In any case, curious as to whether the test run you were going to do worked or not (bearing your workload in mind!).