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General DNS & Domains Dyn Email Update Clients Dyn Developer

Have a dynamic IP and am using DynDNS Custom DNS Service - working fine.

I just purchased the Dyn Standard SMPT package and I'm trying to setting it up. I'm running Exchange 2010 on a W2K8 SP2 server.

There are some new topics for me, MX List and TXT Records, these ones appear on my DNS setup page on http://dyn.com. I wonder what values I should enter there.

If I trace the SMTP using http://mxtoolbox.com, I get:

-----------------------------------
220 MailServer Microsoft ESMTP MAIL Service ready at Tue, 21 Feb 2012 18:41:00 -0600
OK - MyIP resolves to dsl-MyIP-dyn.MyISP
Warning - Reverse DNS does not match SMTP Banner
Supports TLS.
0 seconds - Good on Connection time
Not an open relay.
5.242 seconds - Warning on Transaction time

Session Transcript:
EHLO http://please-read-policy.mxtoolbox.com
250-MailServer Hello [MyDNS]


It looks like my exchange server is replying properly but I'm unable to get emails from external users (for users into the domain it works fine) so I guess I should configure MX List and TXT Records first but I don't know how, please advice.

Thanks in advance,
m0dest0.

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asked Feb 22 at 12:51 AM

m0dest0\'s gravatar image

m0dest0
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2 answers:

The MX record for your domain should be a priority number (use 10 if you only have one mail server) followed by the hostname in your domain that resolves to your changing WAN IP - for example 10 yourhost.example.com.


Hostname "10 http://mail.mydomain.com" is invalid and cannot be used for mail exchange records

Did you enter the http:// or did the forum add that?

All I can say is that you've got an error. Unfortunately because you insist on using domains owned by others, and not your own domain, when you post there isn't any way for us to know what the problem is.

If you can provide the real hostnames and domains then, and only then, we should be able to help.

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answered Feb 22 at 06:52 AM

Cry Havok\'s gravatar image

Cry Havok ♦
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If I try to enter in that format I get:

Hostname "10 http://mail.mydomain.com" is invalid and cannot be used for mail exchange records.

Thanks,

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answered Feb 23 at 05:31 AM

m0dest0\'s gravatar image

m0dest0
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