It seems that Ilya Voronin, the maintainer of the Exim port has vanished. I tried to contact him twice in the last three months and didn't get a response.
I would like to maintain the Exim port. I've attached a port of Exim 4.60, which includes the setting WITH_OLD_DEMIME=yes as suggested by Tamas Tevesz. The file pkg/PFRAG.no-no_exiscan is no longer needed. Tested on i386 and amd64 with all flavors except -mysql, which was tested by Tamas Tevesz.
exim-4.60-port.tar.gz
Description: Port of Exim 4.60