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DDNS MX Record

I have problems with receiving  SMTP mail on my home network. I am using DSL with dynamic IP.
This is what I have already done.

1) I setup account with dyndns.org    "name.dyndns.org"
2) I changed my mx record on the registerar server to "name.dyndns.org"
3) I have changed the port 25 forwarding on my router to the privat IP of my server
4) I have installed update client on my network to send the IP change to dyndns.org

It is still not working. Could somebody help
J0K0
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josefkocarek
Asked:
josefkocarek
1 Solution
 
rburns50Commented:
DNS changes typically take 24-48 hours or more to propogate to DNS servers around the world, especially as some of them set their refresh interval really high to save on resources. I would wait a bit and see if it works. If you can check the DNS server at your ISP, it might tell you if the change made it to them.
To do so:
-Grab your ISP's DNS server address off of your home router
-go into a Windows PC at home, and run nslookup at a command prompt
-type "server <dns server address from above step>"
-type "set type=mx"
-type your domain name and see what mx resolves to

If it's not right, you may need to wait a day or so...
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josefkocarekAuthor Commented:
I will try it
I didn't change the DNS servers at my registerar they still point to the  ISP. I have just changed the mx record. Do I have to point them somewhere else when I want to leave the website at the old ISP but the smtp mail sent to my exchange server at home?
J0k0
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josefkocarekAuthor Commented:
I have tried it and the result is the dns of mu ISP. I don't want the mail go to my provider. I want it to go to my exchange server at home.
J0k0
0
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xrokCommented:
>I am using DSL with dynamic IP.
All Dynamic IP will be and is black listed under DNSBL

You may want your ISP to forward MX record to your IP. (This is my setup)


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rburns50Commented:
you own the domain, so you can direct your mail anywhere you want. You can have your website at one place, and your mail at another. I think your problem is as I first stated- it takes a long time for DNS changes to make their way through the Internet. If you set your mx record properly (pointing to your home router's IP address), and you have the port forwarding set up right, it should work after the mx change crawls through the 'Net.

Only thing to worry about is the dynamic address...if your ISP changes it frequently, you have to keep doing this mx change to match the IP they give you. Some give you the same address over and over, some change it up to keep you from doing what you are trying to do...
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gjohnson99Commented:
check your mx record 1st - dns lookup on your domain MX record

If that not right it will never work

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josefkocarekAuthor Commented:
rburns50
I am using DDNS update client that takes care of the IP change. I am suspitious, that the problem is there (DDNS). I realized, that my IP didn't change for last 5 days and so I changed the mx record directly to the IP (not over the DDNS service) rather I added another mx record with higher priority so when the one which uses DDNS doesn't work it should go to the one containing my IP. I will try to do your test again.

I have question:

-Grab your ISP's DNS server address off of your home router//////////////////   do you mean the IP or the name. I have entered the IP 4.2.2.1 (verizon)


-go into a Windows PC at home, and run nslookup at a command prompt
-type "server <dns server address from above step>"//////////////////////////   I have entered the 4.2.2.1

-type "set type=mx"

-type your domain name and see what mx resolves to/////////////////////////    I have enterd newsuccessinc.com
This is the whole procedure:

C:\>nslookup
DNS request timed out.
    timeout was 2 seconds.
*** Can't find server name for address 10.16.0.
Default Server:  nsbalt.bellatlantic.net
Address:  151.196.0.38

> server 4.2.2.1
Default Server:  vnsc-pri.sys.gtei.net
Address:  4.2.2.1

> set type=mx
> newsuccessinc.com
Server:  vnsc-pri.sys.gtei.net
Address:  4.2.2.1

DNS request timed out.
    timeout was 2 seconds.
DNS request timed out.
    timeout was 2 seconds.
*** Request to vnsc-pri.sys.gtei.net timed-out



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