newest mailx ebuild didnt apply fixes in mailx-8.1.1.11.diff, so paths were wrong and lockfile was borked, etc. Please find revised ebuild and diff attached:)
Created attachment 9869 [details] revised ebuild for patch/fix
Created attachment 9870 [details] patch that goes with revised ebuild
Quick note to let you know that I've seen this bug and will fix it this afternoon.
Fixed, thanks.