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How do I properly setup Exchange and the Firewall to receive E-mail from other domains?

Posted on 2008-10-06
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Last Modified: 2013-11-29
I am still having problems with my exchange deployment. For some reason I still can not get any mail sent from other domains (I.E. Gmail.com, etc.) to actually be received exchange. My current e-mail system is some no name brand IMAP e-mail. After setting up Exchange and making the receive connectors One for Client port 587 and the other for default on ports 25 and 143.

My Firewall currently has the following ports forwarded to the DMZ (where the current email server is):
50636 - Edge Transport
110 - pop3
25 - SMTP
993 - Imap4d-ssl
995 - Pop3d-ssl

I critiqued my firewall to point all of those ports into my LAN Directly to the IP address of my exchange server and still nothing.

I also created port 143 and forwarded it to the exchange server and still nothing.

When I change everything back to face the old email system within 5 to 10 minutes the email I sent from gmail appears... Thoughts?

Am I missing something?
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Question by:agentkolb
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Andres Perales earned 500 total points
ID: 22652154
do you have you external dns setup to accept mail to the new email server, an mx record pointing to you mail server needs to be setup to forward the mail correctly.
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by:agentkolb
ID: 22652183
Ahh I think this is where I failed to set something up. My only concern is once I do that with Godaddy - and something still doesnt work I need to then re set it up to point at the other server again. Someone else in a previous post said not to create an MX record until I verified it worked....
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by:Andres Perales
ID: 22652210
you can have more than one MX record, cost the record higher than the original or vice versa.
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by:agentkolb
ID: 22661114
Ok so Godaddy doesnt do my DNS. ICN does as we are a school district. Below is what our DNS settings look like for my mail/MX records. My question is what will my new or added mx record look like since it isnt in the DMZ and it is in the LAN?

alden-hebron.org. MX 10 mail.alden-hebron.org.
phoenix MX 10 mail.phoenix.alden-hebron.org.

mail.phoenix A 64.107.149.73
*.phoenix A 64.107.149.73
phoenix A 64.107.149.73
mail A 64.107.149.73

Thanks
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