x
all questions login
General DNS & Domains Dyn Email Update Clients Dyn Developer

Ppl...

I'm trying to configure a personal e-mail server but it is not working at all. I'm sure that the problem is with that silly part that stay between the chair and the keyboard... :-)

My configuration is:

A DynDNS server connected directly from a NetGear router. So, DynDNS redirects to the router instead of my computer...

Port forward in the NetGear is configured to router the 80, 110, 143 and 25 ports to my server.

My idea is to create emails like (XXXXX@XXX.dyndns.org) to be served by my server.

So, how should I configure my DynDNS account?

Regards

JA

more ▼

asked Feb 20 at 12:41 PM

josearmandoporto\'s gravatar image

josearmandoporto
33 2 2 5

10|600 characters needed characters left

2 answers:

Nothing special to configure regarding your DynDNS account. Theoretically it would work out of the box.
See your MX record with "nslookup -type=mx http://XXX.dyndns.org." or "dig mx http://XXX.dyndns.org".
However...

Not sure why you forward ports 80, 110, 143, because these are not needed unless you want to access your mail server from outside with a mail client to maintain your mail from there, and also want to host a website with e.g. webmail support. Else you only need port 25.

Are you trying to receive e-mail at your mail server? Your ISP may be blocking inbound port 25, so you must use a different one and a service like MailHop Relay, which delivers your mail via this different port. Regarding MailHop Relay see also http://www.dyndnscommunity.com/questions/736/how-to-configure-dyndns-mailhop. Please note, you need a registered domain and related DNS in order to use it.

Are you trying to send e-mail from your mail server? Most mail exchangers will not accept mail from dynamic IP address ranges, so you would need to send e-mail via your ISP's mail exchanger, or you need a service like MailHop Outbound.

More information: http://www.dyndns.com/support/kb/mailservers.html
You can test all of this and more from remote with e.g. MX Toolbox.

Another comment: A DynDNS server connected directly from a NetGear router.
This is not possible at all and bad terminology or wrong understanding of the matter.
In fact you created a DNS entry with your DynDNS hostname (an A and a MX record), pointing to your public (WAN) IP address, not more, not less.
Look at it: nslookup -type=all http://XXX.dyndns.org. (or use dig for other OSes)

So, DynDNS redirects to the router instead of my computer...
Anyway, there is no other way when using a NAT router. And also, DynDNS does not redirect to your router, but to your public (WAN) IP address, no matter what device is behind this address. They can't do anything more from a technical perspective...

more ▼

answered Feb 20 at 01:51 PM

RotBlitz\'s gravatar image

RotBlitz ♦
27.8k 4 14 94

Just a few minor comments: "nslookup" exists by default on most OSes, while "dig" is often not installed by default. However the "all" query type of nslookup is specific to the Windows implementation (use "any" instead). Regarding MX records, no MX record is necessary if the host itself is the MX, and as far as I remember, DynDNS do not allow specifying the host itself as its own MX record (because that would be redundant).

Feb 21 at 11:21 AM VikingTiger ♦
10|600 characters needed characters left
Your answer
osqa.question.ask.tags.preview.show

© 1998-2011  Dynamic Network Services Inc.  -  Legal Notices  -  Privacy Policy  -  Contacts     

Powered by Qato