Re: DNS: MX and CNAME records

> I am using no-ip.com:
>
> wall.madduck.net. 86400 IN CNAME oerlikon.no-ip.org.
>
> I cannot add MX records to oerlikon.no-ip.org, so how am I supposed
> to receive mail for wall.madduck.net at a.mx.madduck.net then, or
> more importantly, use it as the MAIL FROM sender? Many domains these
> days just refuse mail from sender domains that don't have A or MX
> records.

I use everydns.net for a similar setup. It lets you create a zone with dynamic A record as it's root (with a client to run on your system for automatic updates) and then you can add static records to it.

Something like
yourdomain.com. 300 IN A 1.2.3.4 (this updates automatically) yourdomain.com. 300 IN MX 10 whatever.com (this is static)

The service is free, and very stable. (thought it supports only A/NS/CNAME/MX records for now - so no spf/ipv6/etc.)

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