Have you tried to manually establish a Telnet connection on port 25 to the destination MX?
Maybe they are blocking you for some reason. Try Telnet and enter the mail from, rcpt to, etc and see what the remote systems answers with. -----Original Message----- From: Montano, Greg [mailto:[EMAIL PROTECTED] Sent: Friday, January 30, 2004 12:23 PM To: Exchange Discussions Subject: RE: 5.7.1 errors I was getting a time out then non authorative answer (from ISP DNS). I added the DNS is the SMTP delivery, advanced thab The message back however is (which doesn't mention that it has a problem finding it) [EMAIL PROTECTED] on 1/30/2004 10:24 AM You do not have permission to send to this recipient. For assistance, contact your system administrator. <po1.gnyha.org #5.7.1 smtp;550 5.7.1 Unable to relay for [EMAIL PROTECTED]> -----Original Message----- Fyodorov, Andrey FTL Sent: Friday, January 30, 2004 12:10 PM To: Exchange Discussions Subject: RE: 5.7.1 errors Do you get timeouts if you run NSLOOKUP against the ISP DNS servers? _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang =english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with. _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang=english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with.
