In your DNS server, check with placing external DNS server IP address in the tab - DNS forwarders? Change DNS server order of the exchange server or try external DNS server Address. - Hirantha -----Original Message----- From: Ahmad Abuzaid [mailto:a.abuzaid@xxxxxxxxxxxxxx] Sent: Friday, February 20, 2004 10:18 PM To: [ExchangeList] Subject: [exchangelist] RE: Eamil Sending Error http://www.MSExchange.org/ ----- Original Message ----- From: "System Administrator" <postmaster@xxxxxxxxxxxxxx> To: "Amer Jardaneh" <a.jardaneh@xxxxxxxxxxxxxx> Sent: Friday, February 20, 2004 12:04 PM Subject: Undeliverable: Help with sevenStax TCP/IP stack Your message To: Saleh Mohamad Cc: Mohammad Kiwan Subject: Help with sevenStax TCP/IP stack Sent: Wed, 18 Feb 2004 11:34:47 +0200 did not reach the following recipient(s): mohamad@xxxxxxxxx on Fri, 20 Feb 2004 12:04:09 +0200 Could not deliver the message in the time limit specified. Please retry or contact your administrator. <gce.gcesoft.com #4.4.7> Disclaimer and Confidentiality This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited. WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The Crescat Developments Limited accepts no liability for any damage caused by any virus transmitted by this email. E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message, which arise as a result of e-mail transmission.