Kednos e-mail problems?

A while back I tried to contact Kednos, but I couldn't and I got
a bounce:

----- The following addresses had permanent fatal errors -----
<hobbyist@xxxxxxxxxx>
(reason: 554 5.7.1 Message rejected due to header contents.)


I tried to contact Kednos for Hobbyist usage and licensing of
their PL/I offering for VMS. (I'm hoping that whoever this
message was intended for reads comp.os.vms.)

Is anyone in contact with Kednos, or could someone perhaps
contact them for me? If it's no problem or trouble, of
course. I'd be most grateful.

- MG
.