Go to the exchange machine, make a dns lookup for the mx records of that domain. Then try to telnet them on port 25. Let me know if you suceed or no. -----Original Message----- From: Deshwal Chand [mailto:chand@xxxxxxxxxxxxxxxxx] Sent: Wednesday, June 12, 2002 6:21 AM To: [ExchangeList] Subject: [exchangelist] Can't send mails to a particular domain! http://www.MSExchange.org/ - Re-Vamped! Hi, I am using Exchange 5.5 sp4 at WinNT 4.0 Sp6a. My problem is that I am receiving e-mails from a particular domain, but I can't send e-mails to that domain. Kindly note that there is restriction applied for that site. Regards, Chand Deshwal (M.Tech CS&E, MCSE, CCNA) Network Administrator Kampsax India Ltd., Gurgaon ph: +91 124 6348259-62, Extn. 712 chand@xxxxxxxxxxxxxxxxx http://www.kampsaxindia.com <http://www.kampsaxindia.com/> ------------------------------------------------------ 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 MailSecurity. MailSecurity provides email content checking, exploit detection and anti-virus for Exchange. Spam, viruses, dangerous attachments & 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 MailSecurity, GFI also produces the FAXmaker fax server & LANguard network security product ranges. For more information on our products, please visit http://www.gfi.com This disclaimer was sent by Mail essentials for Exchange/SMTP.