gmix and grecord developers

["David Hampton" <hampton employees org>]

I've got bugfixes for both programs that I would like to submit but I
can't reach the authors.  Does anyone have current email addresses for
the authors of these two programs?  I've tried sending mail to the
following:

   gmix:	jchrr uni-bielefeld de, jchrr kez uni-bielefeld de
   grecord:	a hyden cyberpoint se

but I get SMTP 550 "User unknown" errors for all addresses.  Thanks.

David