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Exchange can send mail, but not receive.

By courtney ·
I am able to send email but not receive it. When I go to www.checkdns.net and do a test for my domain crestpsi.com. It says email is working fine. But when I open up users Outlook it doesnt receive mail and I get delivery messegaes returned after a couple of hours if I try to send these internal users email.

It was all working fine when I had my ISP do the DNS. Now I am doing it and it seems like it is fine, from the tests.

What should I look at for the problems?

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by shanna In reply to Exchange can send mail, b ...

How long ago did you switch the DNS hosting from your ISP over to yourself? It typically takes 24 to 48 hours for the change to propogate to all the global DNS servers, so if you've made the switch prior to the outter end of that time frame you may be jumping the gun thinking there's a problem.

Check after a couple of FULL days... then pursue a fix if there's still a problem.

Shaun.

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by courtney In reply to

It seems my problem was that my ISP still had my domian cached for over a week. So within my ISP subnet I could not receive email.

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by ssvkumar In reply to Exchange can send mail, b ...

Below is the result for your domain(email server) while testing it from checkdns:-

Connection to mail server mail.crestpsi.com [66.7.246.234] timed out waiting for status 220
Some of your MX do not work properly

Problem likely seems at the network level if your IMS config is at all okay.This can be isolated by doing the below:-

1.Check your server's IMS from your LAN by doing telnet "server" 25 (response should be Microsoft ....ready".Incase you don't get it please configure your IMS.

2.Ensure that your exchange server's internet connectivity is configured along with the static IP address.(Your MX record should be pointing this static IP address).Upon ensuring the connectivity try checkdns, you should be getting the positive response for mail server also.

(Users are getting the message back becz server is not able to find any route to send the external message to external domain!!!)

All the best.

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by courtney In reply to Exchange can send mail, b ...

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