I have Windows Server 2003 and Microsoft Exchange Server 2003
I have set up a couple test accounts in exchange. One of those is email@example.com.
I have a dynamic IP which is redirected using ct021.homelinux.org using dynamic dns (http://www.dyndns.org
So far it has worked for my website, ftp etc.
I am able to use Outlook Web Access and send mail out to peopel with exhange 2003.
it is trying to send mail to the exchange account (firstname.lastname@example.org
.org) where i get the following error:
The original message was received at Wed, 29 Oct 2003 19:01:51 -0700 from 250.89.252.64.snet.net [188.8.131.52]
----- The following addresses had permanent fatal errors ----- <email@example.com
(reason: 550 access denied)
----- Transcript of session follows ----- ... while talking to ct021.homelinux.org.:
<<< 550 access denied
554 5.0.0 Service unavailable
I have tried going to Message Delivery properites, SMTP properties, and POP3 properties to make sure that it is not denying anything from any IP addresses, and also allowed anonymous SMTP access as well as any IP to Relay. I have checked the box for allowing any computer which succesfully authenticates to relay, regardless of any IP restrictiosn (which there are none).
i am using ct021.homelinux.org as my fully qualifed domain name, and have no masquerade domain name, do not have perform reverse DNS lookup in SMTP settings, nor do i have any external DNS set up.
I use Windows Server 2003 as a DNS server and it does the DHCP etc. my router (I have DSL hense the dynamic IP) so i can also get my acutal DNS settings and my actual IP if needed (but dyndns.org redirects my IP to ct021.homelinux.org anyway).
outbound security is also anonymous.
i am completely stumbled on what further action to take or check or if my settings are correct. I am using my exchange server mainly to provide web based e-mail to ROTC cadets that dont' normally have e-mail.