We had the same problem until we had the POP3 users check "My server requires authentication" in Tools-Accounts-Properties-Servers-Outgoing Mail Server in Outlook Express.
-----Original Message----- From: Sethi, Ali [mailto:[EMAIL PROTECTED]] Sent: Thursday, October 18, 2001 9:51 AM To: MS-Exchange Admin Issues Subject: POP3 issue after disabling relay Hello Everyone, Specs: Windows 2000 server sp1 Exchange 5.5 sp4 At one time our Exchange server was setup as a relay agent. We had numerous ISPs like mindspring and earthlink block emails stemming from our domain. Several days ago we corrected that problem by ensuring our Exchange server is no longer setup to relay. The following steps were done to prohibit relaying: 1.In IMS we unchecked 'Hosts and clients with these IP addresses' 2.We also unchecked 'Hosts and clients connecting to these internal address and remove the ip address and mask of our Exchange server. We are having issues with our POP3 users after making these changes to disable relaying. We are getting complaints from users setup as POP3 that they cannot send to external email addresses. They can only send to our internal users. As a temp solution we have asked that our POP3 users use OWA to send to outside clients. At present there are approximately 13 POP3 users in our company so its not a major issues but just a slight inconvenience for them. Is there a way we can correct this issue and allow the POP3 users to send externally? Does any one have any suggestions? Any assistance would be greatly appreciated. Thanks, List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm
