Using Windows 2003 Server, SMTP won't work

I don't have a DNS yet, but I've activated the mailboxes for a domain I will buy soon. I'm able to send and receive messages within my domain. I know I won't be able to send messages to the domain from outside since the messages wouldn't know where to go.

My problem is that it won't send any messages outside the domain. I've openned up ports 25 and 110 on my router, and they're forwarded to the right computer. The exact message I get back is this:

Your message did not reach some or all of the intended recipients.

Subject: testing factor to ornet
Sent: 1/14/2004 6:34 PM

The following recipient(s) could not be reached:

'nick@theouterrim.net' on 1/14/2004 6:34 PM
550 5.7.1 Unable to relay for nick@theouterrim.net


Anyone know what could be causing this?

I'm also having trouble finding the log files. The error was the auto reply I got.

Thanks.

-Nick

I have the exact same problem and can't find a solution... can someone kindly answer!?!

This is a DNS issue...
possible cause is that the recipient you are sending to does not have a PTR or you do not have a PTR and RDNS is being used could also be a black list issue.

Also this could be an issue with exchange and your internal DNS server
http://support.microsoft.com/defaul...kb;en-us;289045

I added the Reverse Lookup, Pointers to the host, and added the Forwarder IP as the article said and still have the problem!

Anybody know how to solve it?

Im assuming both of you have opened your firewall for SMTP and are able to telnet to port 25 of the host mail server you are trying to send to? Also try and relay into the host server manualy

helo
mail from:you@your.domain
rcpt to:reciever@their.domain
data
test
.

if the reciever gets the message let me know if they dont then what is the error? you have to do this from within your domain.

Ok the email my server is hosting is Administrator@kerbeos.com - I can receive mail from anyone but I just can't send it past my network. I have tried sending an email to an outside domain with my firewall disabled and I received this back locally:


Subject: test
Sent: 3/6/2004 1:32 PM

The following recipient(s) could not be reached:

'Trellis@ngirc.net' on 3/6/2004 1:32 PM
550 5.7.1 Unable to relay for Trellis@ngirc.net

I'm using Windows 2003 POP3 as well as IIS SMTP

Numerical Code: 5.7.1
Possible Cause:
General access denied, sender access denied - the sender of the message does not have the privileges necessary to complete delivery.
You are trying to relay your mail via another SMTP server and it does not permit you to relay.
The recipient might have mailbox delivery restrictions enabled. For example, a recipient's mailbox delivery restriction was sent to receive from a Distribution List only and non-member's email will be rejected with this error.
Troubleshooting: Check system privileges and attributes for the contact and retry the message. Also make sure you are running Exchange 2000 Service Pack 1 or later for other potential known issues.


also try this..

do nslookup -q=mx theouterrim.net

this will give the IP address of the recipients mail server from the mx record. use this in the following article..
http://support.microsoft.com/defaul...roduct=exch2003

to bypass DNS

I changed a SMTP setting and I get this now in return:

Reporting-MTA: dns;server1.kerbeos.com
Received-From-MTA: dns;server1
Arrival-Date: Sun, 7 Mar 2004 10:15:08 -0500

Final-Recipient: rfc822;Trellis@ngirc.net
Action: failed
Status: 5.3.5

http://support.microsoft.com/defaul...roduct=exch2003

or

Numerical Code: 5.3.5
Possible Cause: Loop-back detected (server is configured to loop back on itself).
If you have multiple SMTP virtual servers that are configured on your Exchange server, make sure that they are serving unique incoming port and also that the outgoing SMTP port configuration is valid to avoid looping between local virtual servers.
Troubleshooting: Check the configuration of the server's connectors for loops. For example, make sure that no connectors exist that have the address space of the local organization unless you share the domain and you do not select Use DNS to route to each address space on this connector. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
321721 XCON: Sharing SMTP Address Spaces in Exchange 2000

Thanks for helping out soo much, but that was for MS Exchange Server which neither I or nickwinters have. We use strictly POP3 and SMTP from Windows 2003 Server. I'd appreciate it if you could help me out with this and thanks again for helping us!

YOu need to reconfigure your smtp server to allow mail to be relayed to other domains. IE to allow you to send to other then your internal domain.. Do this by opeing iis manger right click default smtp server. Choose the acces tab then the relay tab. Then choose the option to allow all host to relay through this server except those in list below. You will want to make sure all hosts on your domain authenticate to the smtp server to avoid spammers from relaying through your server and thus having your domain flagged for sending spam.

Hope this helps.

What I have done for one of my pop3/smtp servers is get a static ip from my ISP and then use the fqdn assigned by my isp for my fqdn for my mx server. I then open my ports on my router and forward to my internal server. Works great.

Thanks everyone for the help. I actually fixed the problem before that but it's still good for anyone else to have the problem to see. Thanks! You've all been a great help!

~Trellis

SMTP Virtual Server doesn't show up in IIS 6.0 I have uninstalled and reinstalled my Mail server role 3 times to no avail?

Windows 2003 Ent Server.

POP3 and SMTP "no exchange"

I can recevie mail from any email address but can't send it because of relaying but SMTP Virtual Server doesn't show up in IIS 6.0 so I can configure it?

Can somebody please have a look at my thred in this forum please! Its all bout setting up a mail server. Plenty of you have viewed it but i would appreciate a reply :-> Thank you but im becomming desperate!!!


Graham