[Dnsmasq-discuss] Wildcard / catch all Mail eXchanger (MX)
Cyberfusion
wedwards at cyberfusion.nl
Fri May 7 14:53:13 UTC 2021
> Op 7 mei 2021 om 16:33 heeft Mark <dnsmasq at resimplify.net> het volgende geschreven:
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> Hi,
>
> 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...
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> I have an internal network that is using dnsmasq for name resolution and some (not all) hosts are using it for DHCP.
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> 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).
Not an answer to your question, but have you considered using something like nullmailer?
>
> 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.
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> Essentially, I believe I want to specify a wildcard as the "hostname" (really "mail domain").
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> I wondered if it's possible to deliver this functionality with the current dnsmasq?
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> Appreciate any insights you're able to share.
>
> Thanks in advance.
>
> Mark
>
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