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Outbound IPv4 on Domain Technical Control Panel
Question asked by Merle Wait - December 21, 2015 at 8:03 AM
Unanswered
On the Domain Technical Control Panel there is:
Outbound IPv4
.. and then we have the priority settings on Priority Panel.
Which over=rides which and why?  There is zero documentation that I can find that explains the interaction of the two.  More over, if we change the I/P address on the SM itself and the box SM is on, these setting remain as they were.
I am little confused 

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Bruce Barnes Replied
December 21, 2015 at 8:08 AM
We always map the domain's ip in the domain setup, and then use the domain's IP in SMTP OUTBOUND.   If you allow overrides, and you don't have the other IP addresses in tour rDNS and SPF for the domains, you will run into blocked delivwry issues.
Bruce Barnes
ChicagoNetTech Inc

Phone: (224) 444-0169

E-Mail and DNS Security Specialist
Network Security Specialist

Customer Service Portal: https://portal.chicagonettech.com
Website: https://www.ChicagoNetTech.com
Security Blog: http://networkbastion.blogspot.com/

Web and E-Mail Hosting, E-Mail Security and Consulting
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Merle Wait Replied
December 21, 2015 at 11:38 AM
So, we have outbound 55.123.123.45  -- <<  SM Server    Internal 192.168.255.123  Domain A
                                 72.104.155.87  -- <<  SM Server    Internal 192.168.255.188  Domain B
                                 72.104.155.89  -- <<  SM Server    everyone else                 Domain C-Z
The above is completed through Priority pool, so what is the default IP used for, or does it matter?
So, if I have an MX record for Domain A; as 55.12.123.45 - I assume it is ok?
Hate to be so dense, but just trying to get  a full understanding of the two interactions.
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Bruce Barnes Replied
December 21, 2015 at 12:05 PM
You must map the DOMAIN to a PRIVATE, STATIC IP ADDRESS in the EDIT DOMAIN TAB
 
You must tell SMTP OUT to use the DOMAIN'S IP ADDRESS.
 
You MUST have your PROVIDER map an rDNS record for the PUBLIC IP ADDRESS to the DOMAIN to which it is assigned.
 
They you must MAP the PUBLIC IP ADDRESS used for the domain to a PRIVATE, STATIC, INTERNAL IP ADDRESS in SmarterMail and use ONLY THAT PRIVATE IP ADDRESS for the domain.
 
You must also create a HOST MAPPING, using the PUBLIC UP ADDRESS in the SmarterMail mappings.
 
To the best of my knowledge, you cannot setup priority on IP addresses in SmarterMail.
 
There is no interaction - just ONE-ON-ONE MAPPING, on a PER DOMAIN BASIS.
 
You will use the PUBLIC, STATIC IP ADDRESSES for your HOST ("A") records - pointing to your mail host.
 
You will use the same PUBLIC, STATIC IP ADDRESS for the rDNS for the domain's MX SERVER rDNS mapping.
 
You will create a MAIL RECORD and point it to the FULLY QUALIFIED HOST NAME for the domain.
 
This requires a very solid knowledge of both DNS and IP ADDRESSING.
Bruce Barnes
ChicagoNetTech Inc

Phone: (224) 444-0169

E-Mail and DNS Security Specialist
Network Security Specialist

Customer Service Portal: https://portal.chicagonettech.com
Website: https://www.ChicagoNetTech.com
Security Blog: http://networkbastion.blogspot.com/

Web and E-Mail Hosting, E-Mail Security and Consulting

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