sending out but not receiving

[LucaBrasi1]

I am inexperienced with Exhange 2000 but have decent experience on Exchange 5.5. We have an internal domain named cogh.org. And the exhange server is setup as w2kserver.cogh.org. The company has any external domain from an isp lets say for privacy it is catchovergohome.org. We had the isp setup the mx record setup w2kserver.catchovergohome.org to point to the router of our gateway and have nat setup to translate ports 25,26,110 to our exchange server.

Now I am able to send out with no problem but I am not able to receive. Since the internal domain name of the exchange server is different then the ISP domain name do I need to setup a entry in DNS resolving the 2 names?

 

[Claudek]

As people are going to mail you by using the @catchovergohome.org address, perhaps it is more prudent to get the ISP to create MX record for catchovergohome.org which points to the public IP address set on your router. This will in turn be configured to forward all SMTP messages to your w2kserver.

Claudius (What certifications??)

http://www.iteq.com.au

 

[LucaBrasi1]

Thanks for your reply but The ISP does have the mx record set that way.

 

[Claudek]

OK - I mentioned MX record for catchovergohome.org as you listed w2kserver.catchovergohome.org as the MX record set by your ISp in your 1st post.
Just to be sure, Do your users have their primary SMTP addresses set to @catchovergohome.org ?
Also, as email is not being delivered to your domain, what are the error messages received by those sending you the email? Test by using a hotmail account etc. The error message can help greatly to resolve this.

Claudius (What certifications??)

http://www.iteq.com.au

 

[LucaBrasi1]

How would I set the users primary smtp address to catchovergohome.org? The Exchange server is setup as w2kserver.cogh.org or does this not matter?

The error I get when trying to send an email to that site is 550 5.7.1 unable to relay.

 

[Claudek]

Ok, you do need to have primary SMTP address set to @catchovergohome.org type.

Open Exchange System Manager
Navigate to Recipients -> Recipient Policies
Right-click Default Recipient Policy and select Properties Select the Email Addresses Policy tab.
At present you will probably only see @w2kserver.cogh.org
Click the New button and select SMTP Address from the list of email address types.
In the SMTP Address Properties window enter the @catchovergohome.org address (well in your case your company's public email address). Select the check box labeled This Exchange Organization is responsible for all mail delivery to this address
Give it a few minutes and soon everyone will have a new primary SMTP address ending with @catchovergohome.org

Send some test mails and see how it goes.


Claudius (What certifications??)

http://www.iteq.com.au

 

[LucaBrasi1]

I tried this but it is not working. When I send out mail from the site it sends it out as Administrator@cogh.org. I would like it to say administrator@catchovergohome.org. And I am still not able to receive email. Are there SMTP or pop settings that need to be setup for Exchange 2000? I know on 5.5 the it listens automatically on port 25. Thanks for the previous help also Claudek.

 

[LucaBrasi1]

Actually Claudek I didn't set that domain as primary but as soon as I did I worked. Thankyou very much for sharing your information.

 

[CCFAdmin]

Hello,

I appear to be having a similar issue. Except I run my own DNS server, thus I configured the MX records. I can't recieve but I can send.

Any thoughts...

What drives ne nuts is I had it working on my test sever and have mirrored the setting with no luck.....

Thanks
Charles

 

[Claudek]

As you are hosting your own DNS for external purposes, what you need to do is to go to the people from whom you bought(registered) your web,mail internet address from. They will have a configuration whereby you can specify your primary namespace server, in this case your External Ip address. You can usually do this from a web console for registered members or send them an email (or call). You will also have to forward all DNS requests from your router to your DNS server.

The steps below sort of cover the basics:
1. Someone will try to visit your website or send you an email.
2. A request for the primary namespace server will be sent to your registry who will then send them the IP address you listed.
3. A request will then be made to your DNS server which will give the web or MX record as requested.


Claudius (What certifications??)

http://www.iteq.com.au

 

[Claudek]

Also in addition to the above, make sure that your firewall (if any) is not blocking incoming DNS requests.


Claudius (What certifications??)

http://www.iteq.com.au

 

[CCFAdmin]

Thanks for your help...

BUT, I've configured the DNS as you mentioned above. I've verified the name servers are correct by checking the admin console at the netsol.com (Where I registered)

Also, my firewall is set up to allows DNS through. My website traffic works as well....

Any more thoughts...

Thanks

 

[Claudek]

Have you set your router (ie the public ip interface) to forward all port 25 traffic to the internal exchange box?

Also there seems to be a few firewall settings regarding dns. Double-check it allows dns querie (server), dns lookup
etc.


Claudius (What certifications??)

http://www.iteq.com.au

 

[CCFAdmin]

OK, thanks...

I have a SOHO3 firewall... The DNS, SMTP, POP3 and web traffic are all configured to flow through. Recently I have not gotten the returned undeliverable messages. But rather I find the following under SMTP queries (in exchange):

error<administrator@iXXX.net>:
IP of XXX.net does not like recipient.
Remote host said: 550 5.7.1 Unable to relay for
administrator@XXX.net
Giving up on Ip of XXX.net.


This is the same error I received on the bouce back e-mails.

Any thoughts....
Thanks

 

[CCFAdmin]

Just an update, I don't always get this error... In some cases the e-mail are just lost in space. (Never recevied nor an undeliverable sent to the sender)

Strange....