I would take a look at your message tracking logs. ________________________________ From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Amit Kapoor Sent: Monday, March 27, 2006 5:39 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Re: :Mail Bounce Back. Importance: High Hi, I am experiencing a funny problem. One of the Exchange User is trying to sending a message to another Internal user and to an pop3 account. Mail is being sent through exchange and its relayed by exchange to another machine which has mail server software (Argosoft). All other mails are going smoothly, but this mail gets bounced immediately. Please see the error message and suggest what should I do. Your message did not reach some or all of the intended recipients. Subject: Ford:Nalin::Info for DriveInside.com Sent: 27-Mar-2006 2:27 PM The following recipient(s) could not be reached: nkapoor@xxxxxxxx on 27-Mar-2006 2:27 PM (This is outside account) You do not have permission to send to this recipient. For assistance, contact your system administrator. MSEXCH:MSExchangeIS:/DC=com/DC=login/DC=pdc1:EXCHSRVR2003 Saumya Meattle on 27-Mar-2006 2:27 PM (This is Exchange user) You do not have permission to send to this recipient. For assistance, contact your system administrator. MSEXCH:MSExchangeIS:/DC=com/DC=login/DC=pdc1:EXCHSRVR2003 Please help. -------- Amit Kapoor Network Engineer Module One India Ltd. Paharpur Software Technology Incubator Park A-88, Okhla Phase II, New Delhi 110020, India Tel: +91-(0)11-41859200 ext. 204 | Fax: +91-(0)11-41859220 E-mail: amit@xxxxxxxxxxxxx <mailto:amit@xxxxxxxxxxxxx> | Web: www.moduleone.com <http://www.moduleone.com/> ==== c r e a t i v e i n t e r n e t s o l u t i o n s ==== Module One, one of India's leading Interactive agencies, uses a combination of creative, marketing and technology skills to assist clients in successfully using the Internet for their marketing initiatives.