Dear All, I need your help because I've a problem sending mails only to accounts in our other company. I can send mail to any other domains but when I send an email to this domain it shows me the following Your message did not reach some or all of the intended recipients. Subject: test Sent: 9/2/2003 9:03 AM The following recipient(s) could not be reached: cpm@xxxxxxxxxxxxxxxxxx on 9/2/2003 9:04 AM There was a SMTP communication problem with the recipient's email server. Please contact your system administrator. <mail.crescat.com #5.5.0 smtp;550 <cpm@xxxxxxxxxxxxxxxxxx>, Recipient unknown> To my knowledge this is due to Relay restriction, but I setup my SMTP settings according to the exchange documents and I can send to any other domains. What cause the problem? From my side or other side! I'm using E2K SP3, W2K SP4. I did not change any thing in recipient's policy and others. Please help..! - Hirantha 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.