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MS Exchange Help... Semi-Urgent
Tw4win
Registered User regular
Registered User regular
Here's the skinny...
A client of mine switched ISPs on Friday. The switch was supposed to be really simple but turned into a nightmare because they lost the password(s) and info for their router and firewall. I had to reset both and I've gotten them up and running. They can reach the internet, etc...
Here's the problem:
They have an exchange server. They can currently send & receive email to other people in the office and they can send email to people out of the office without a problem. However, they don't seem to be receiving mail from outside domains and their webmail access is down.
What did I miss here? Do I need to update something in their Exchange server? Do I need to update their nameservers? Keep in mind that they only host email internally, their website is hosted elsewhere.
I'm not Network specialist so I'm stumped here and can use any help you can give me. Just be as specific as possible.
A client of mine switched ISPs on Friday. The switch was supposed to be really simple but turned into a nightmare because they lost the password(s) and info for their router and firewall. I had to reset both and I've gotten them up and running. They can reach the internet, etc...
Here's the problem:
They have an exchange server. They can currently send & receive email to other people in the office and they can send email to people out of the office without a problem. However, they don't seem to be receiving mail from outside domains and their webmail access is down.
What did I miss here? Do I need to update something in their Exchange server? Do I need to update their nameservers? Keep in mind that they only host email internally, their website is hosted elsewhere.
I'm not Network specialist so I'm stumped here and can use any help you can give me. Just be as specific as possible.
Tw4win on
0
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If so did you reopen the ports like 25 on the router to point to the mail server? Also, with the nameservers, is the MX record setup correctly with the new IP from the new ISP?
OK, I'll open the ports. Also, the MX record is going to be found with whoever hosts their domain name, right?
Let's pretend the domain in question is tw4win.com, if we did a whois on tw4win.com we could see that the nameservers registered to that domain are:
ns1.tw4win.com
ns2.tw4win.com
using a dig command we could then do, "dig @ns1.tw4win.com tw4win.com mx" to get the MX record of the domain that is on those nameservers.
In your case it should point to an A record such as mail.tw4win.com which would then use the IP of your router.
That is if your email server is behind that router and setup like that. If your hosting provides DNS, then all you will need to do is edit the A records IP address for the mail.tw4win.com portion to your routers IP.
Also if you don't already, you're gonna want to get an rDNS record setup on that IP from your ISP since many other ISPs will reject mail if one isn't setup.
Their FTP and website is hosted by a hosting company, not by my client so I'm assuming that they also deal with DNS of the domain name. The issue is that they might not actually have the domain name information anymore.
Assuming that the only thing that changed was the IP address provided by the hosting company and assuming that I open (forward) Port 25 to the exchange server (it's got a static IP) all I should have to do is update the MX record, right?
Do that and open port 25 forwarded to the Exchange server IP and you're set.