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exchange 2003 not receiving external emails

i have jst installed exhange 2003 on windows server 2003.

it all seem to work except that i am not receiving external emails

i have setup an A record on my web server and a MX record.

i have allow ports 25 and 110 on my firewall, and i have run the internet mail wizard in exchange that says it worked.#

where else could the problem be?

thanks
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Marcusw
Asked:
Marcusw
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1 Solution
 
xqsCommented:
In general the first step of troubleshooting is to check if the server is allowing connections to port 25.

To check if it's accepting mail from the inside type:

telnet ipaddress 25
You should see a response like:
220 mydomain.com Microsoft ESMTP MAIL Service,  Version: 6.0.3790.1830 ready at date & time
then type:

ehlo
mail from:<me@mydomain.com>
rcpt to:<me@mydomain.com>
data
this is a test

.

(It ends with <enter>.<enter>)
The response should be 250 2.6.0 <messageid> Queued mail for delivery
After every enty you should get a 250 response as well.
Any other response might tell you a little bit more about the problem you are facing.

Another helpful tool (for testing from the internet) can be www.dnsreport.com

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icky2000Commented:
>>i have setup an A record on my web server and a MX record.<<

This sentence doesn't really make sense. What does your web server have to do with it? Nothing. Is your web server also your external DNS server?

You need an MX record in external DNS (in your case you might have only one DNS that you either host yourself or that is hosted by your ISP) that points to a host name. That host name must exist in an A record and the IP it maps to must be the IP address of your Exchange server.
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MarcuswAuthor Commented:
i have typed
telnet 192.168.253.2 25
 and get the response like you suggested

then i typed:

telnet ipaddress 25
You should see a response like:
220 mydomain.com Microsoft ESMTP MAIL Service,  Version: 6.0.3790.1830 ready at date & time
then type:

telnet ipaddress 25
You should see a response like:
220 mydomain.com Microsoft ESMTP MAIL Service,  Version: 6.0.3790.1830 ready at date & time
then type:

telnet ipaddress 25
You should see a response like:
220 mydomain.com Microsoft ESMTP MAIL Service,  Version: 6.0.3790.1830 ready at date & time
then type:

telnet ipaddress 25
You should see a response like:
220 mydomain.com Microsoft ESMTP MAIL Service,  Version: 6.0.3790.1830 ready at date & time
then type:

ehlo
250-hermes.whichlist.local Hello [192.168.253.2]
250-TURN
250-SIZE
250-ETRN
250-PIPELINING
250-DSN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250-BINARYMIME
250-CHUNKING
250-VRFY
250-X-EXOS FSSAPI NTLM LOGIN
250-X-EXPS=LOGIN
250-AUTH GSSAPI NTLM LOGIN
250-AUTH=LOGIN
250-X-LINK2STATE
250-XEXCH50
250-OK

then i typed

mail from: marcusw@whichlist.com

but i keep getting the respone

501 5.5.4 Unrecognixed parameter: marcusw@whichlist.com

i have tried a number of different emails but it comes back with the same error


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MarcuswAuthor Commented:
just tried again, if i do it from my network domain whichlist.local it works
but the .com doesn't
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xqsCommented:
Hi Marcus, the mail from: sentence should include the < > around the email address. So it should be
mail from:<marcusw@whichlist.com>

I just tested a connection to your server from the internet and it worked great.
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MarcuswAuthor Commented:
thanks for your help, it seems that maybe it took some time for the mx records to change as a few hours later the test started working and email started coming in
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