Could be the ISP that the users are using. More and more ISPs are restricting the usage of port 25.
They should be able to use their ISP's SMTP server to send mail. Sincerely, Andrey Fyodorov Systems Engineer Messaging and Collaboration Spherion -----Original Message----- From: Chris H [mailto:[EMAIL PROTECTED] Sent: Monday, October 06, 2003 3:44 PM To: Exchange Discussions Subject: 5.5 IMC and Relay from IMAP session I have an IMAP user on another network connecting to an Exchange 5.5 server. I want them to be able to use the same server to send mail as well. I have configured the IMC (5.5/sp4) with the accept connections (authenticate) and only from users homed on this server. their mailboxes are on this server. they can recieve fine but all outgoing mail gets the 550 relaying denied. I did the disable ESMTP registry hack hoping this would help with the KB article reference to the Cisco PIX firewall and not being able to handle the EAUTH command from ESMTP. No dice however. I have no way of contacting the owner of the network to see if a Cisco PIX even exists . . . any other suggestions? I dont want to just let the SMTP open in this day and age . . . _________________________________________________________________ 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] _________________________________________________________________ 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]
