You are not allowed to relay on the specified server. Check your relaying options in the Exchange system manager, smtp properties. -----Original Message----- From: Mutaz Wahbeh [mailto:mutazwahbeh@xxxxxxxxxxxxxxxx] Sent: Tuesday, September 10, 2002 3:22 PM To: [ExchangeList] Subject: [exchangelist] SMTP error http://www.MSExchange.org/ Dear All receipts, While am using outlook express I receive the following msg when I try to send any msg, plz advice me. The message could not be sent because one of the recipients was rejected by the server. The rejected e-mail address was 'name@xxxxxxxxxx'. Subject 'SUBJECT', Account: 'xxx.xxx.xxx.xxx', Server: 'xxx.xxx.xxx.xxx', Protocol: SMTP, Server Response: '550 5.7.1 Unable to relay for 'name@xxxxxxxxxx', Port: 25, Secure(SSL): No, Server Error: 550, Error Number: 0x800CCC79 Regards Mutaz Wahbeh ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: robert@xxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub') This mail was content checked for malicious code and viruses by GFI MailSecurity. GFI MailSecurity provides email content checking, exploit detection and anti-virus for Exchange & SMTP servers. Spam, viruses, dangerous attachments and offensive content are removed automatically. Key features include: Multiple virus engines; Email content & attachment checking; Exploit shield - email intrusion detection & defence; Email threats engine - analyses & defuses HTML scripts, .exe files & more. In addition to GFI MailSecurity, GFI also produces the GFI FAXmaker fax server & GFI LANguard network security product ranges. For more information on our products, please visit http://www.gfi.com. This disclaimer was sent by GFI MailEssentials for Exchange/SMTP.