Good catch. I was trying to be succinct, but didn't realize that one couldn't
use an IP rather than the hostname.
So the corrected example should be something like this then:
mail IN A 192.168.0.2
aaa IN A 192.168.1.1
IN MX 10 mail.aaa.com.
...Kevin
--
Kevin Miller
Network/email Administrator, CBJ MIS Dept.
155 South Seward Street
Juneau, Alaska 99801
Phone: (907) 586-0242, Fax: (907) 586-4588 Registered Linux User No: 307357
-----Original Message-----
From: owner-postfix-us...@postfix.org [mailto:owner-postfix-us...@postfix.org]
On Behalf Of /dev/rob0
Sent: Thursday, November 16, 2017 5:57 PM
To: postfix-users@postfix.org
Subject: Re: Mail Routing Question
On Thu, Nov 16, 2017 at 10:43:16PM +0000, Kevin Miller wrote:
> You can point the A record for aaa.com to one IP and the MX record for
> it to another.
Yes, but not as per your example.
> I.e.
> aaa IN A 192.168.1.1
> IN MX 10 192.168.1.2
The RDATA for MX is "integer hostname". In your example the "192.168.1.2"
would be read as a hostname, and noting the lack of trailing dot, the zone
file's current $ORIGIN value would be appended.
> In the example above, a web page to http://aaa.com would go to
> 192.168.1.1, whereas an SMTP server would connect to 192.168.1.2.
In this example mail would most likely not be deliverable. The MX record in
DNS would point to a name which probably does not exist.
--
http://rob0.nodns4.us/
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