FW: Unknown mail recipient

Has anyone else got the below msg while posting any new mail to group?

-----Original Message-----
From: <a href="/group/PipingDesign/post?postID=p8YkXdjv6fPfxJAF7yfSod-7D-RR37-mdviB-8xq2bxJwb-ZkfEVR65QmPGEwaOdDb_XwDA7J2Eo_BtXuCQpIIaJD5Lk">nomail@lchgenerators.co.uk</a> [mailto:<a href="/group/PipingDesign/post?postID=p8YkXdjv6fPfxJAF7yfSod-7D-RR37-mdviB-8xq2bxJwb-ZkfEVR65QmPGEwaOdDb_XwDA7J2Eo_BtXuCQpIIaJD5Lk">nomail@lchgenerators.co.uk</a>] Sent: Wednesday, April 21, 2004 10:27 AM To: Ashok T Dani
Subject: Unknown mail recipient

An email you sent with the subject:
[PipingDesign] Delivery Failure Notification could not be delivered. The email address "'pipingdesign@yahoogroups.com'" <pipingdesign@yahoogroups.com> is not recognised ny LCH Generators Ltd. If you intended to email LCH Generators Ltd then please email <a href="/group/PipingDesign/post?postID=GdO9YrEPZc8BaspHbaLDud460M5XYokdtzOrSp6ZLIZcjzMixT8oW7JryZpst550pmVG7gyLwRceR1-n_ua3kdKlT7A">headoffice@lchgenerators.co.uk</a>. Received on Tue Apr 20 00:07:00 2004