Hello, We have Exchange 5.5 sp 4 in NT 4.0 sp 6a environment. Following NDR was received by a user who also received exactly the same NDR a week or so ago. The recipients are local users and appearing normally in the GAL. Can someone give me a clue as to what can generate such an error message as the one below? Thanks a lot. Anwer Abbas -----Original Message----- From: System Administrator Sent: Tuesday, April 01, 2003 4:58 PM Cc: Kathleen Cavallo; Michelle Smith Subject: Undeliverable: RE: UPDATED CLIENT PROPOSAL Your message did not reach some or all of the intended recipients. Subject: RE: UPDATED CLIENT PROPOSAL Sent: 4/1/2003 4:58 PM The following recipient(s) could not be reached: Kathleen Cavallo on The recipient has been deleted or has no e-mail address. Michelle Smith on The recipient has been deleted or has no e-mail address. Anwer Abbas, MCSE, CNA, MCP, CCNA, A+ IT Manager Interactive Network for Continuing Education Phone: (732) 821-7800 x 208 Fax: (732) 821-7803 www.ince.com <http://www.ince.com>