Exchange Server Not Receiving Mail 1

[CinciTech1]

Hello,

I am trying to move my company from an email server we've been using for a few years to an inhouse server. The only issue we're having is getting the inhouse server to accept mail from the internet. So far, I have verified that port 25 is not blocked, and is being forwarded from our router to the server. I believe the url and MX records are correct; the old email server still receives mail when I point the url to its (static) ip.

I am pointing the registrar to the nameservers at no-ip.com, which allows me to change the IP address in the nameserver instantly; (within 5 minutes as opposed to 24-76 hours). I can set the IP to the inhouse server, and we get no mail. If I set the IP to the old server, mail resumes collection at the old server.

I believe my problem is with the server itself, and maybe specifically with Exchange. Could someone point me in the right direction to make the new inhouse server collect email so we can access it? Thanks in advance.

 

[markdmac]

Take a look at DNSSTUFF.COM and query your domain names MX record (right most box on the page) You need to see what IP public DNS knows about and make sure that is pointing to your new server.

I hope you find this post helpful.

Regards,

Mark

Check out my scripting solutions at

http://www.thespidersparlor.com/vbscript

 

[CinciTech1]

I have been toying with the problem, and I set up my MX records to try the new server (MX 5), and then try the old server, (MX 10). Everything has been going to the old server tho, so I'd say it tried the new server and failed.

I think I've figured out my problem, tho... Too much security. I had disabled anonymous access to the SMTP protocol, which I thought would prevent spammers from trying to use our server as an open relay. Not only did it do that, but it was apparently preventing all incoming mail!

In case anyone else has this or a similar problem, I figured out my solution while following the procedure here:

http://www.petri.co.il/test_smtp_service.htm

Markdmac: Thanks for the link. I was using

http://www.whatsmyip.com/ports/

to check my ports, but the link you give has a lot more info.

 

[58sniper]

anonymous access to your SMTP server is required. Disabling that will stop it in it's tracks. It's not how you would stop spam or relaying.

Pat Richard, MCSE(2) MCSA:Messaging, CNA(2)

 

[markdmac]

Yes, I think DNSSTUFF is a great site. Very useful tool for troubleshooting.

By disabling Anonymous access to SMTP, it would require all email to be authenticated. Outside mail is sent anonymous though and that is why it died on you.

I hope you find this post helpful.

Regards,

Mark

Check out my scripting solutions at

http://www.thespidersparlor.com/vbscript