Hello,
On 07.05.21 22:13, Petr Menšík wrote:
I don't think there exists way to do what you requested using dnsmasq.
However, it might work to DNAT rule outgoing SMTP connections to your
smarthost, moving this decision from DNS to IP firewall/NAT. Could be
done only on some gateway of course.
But I think your users would not like such redirection, I think blocking
outgoing ports and requesting manual configuration from clients might be
more acceptable. Just my 2 cents.
+1 from me.
On 5/7/21 4:05 PM, Mark wrote:
I know there are MX related configuration options which can be used in
dnsmasq.conf (mx-host, mx-target, selfmx and localmx) - however, none of
them appear to be able to deliver the specific functionality I'm looking
for...here's what I'm trying to do...
I have an internal network that is using dnsmasq for name resolution and
some (not all) hosts are using it for DHCP.
I would like dnsmasq to deliver a single MX record back to MX queries from
hosts on my internal network no matter what mail domain is being included
in their MX query - i.e. a 'wildcard MX' (which I'll point to my SMTP
smarthost).
The description of the 'mx-host' option in dnsmasq's man page makes
reference to this type of requirement ("for directing mail from systems on
a LAN to a central server") - however, dnsmasq still appears to need to be
configured to provide responses only for specifically mail domains
("hostname") MX requests.
Essentially, I believe I want to specify a wildcard as the "hostname"
(really "mail domain").
I wondered if it's possible to deliver this functionality with the current
dnsmasq?
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