In their (mailgun) instructions to the client.  And then the client wanted us 
to include those to his zone. 

CNAME of course is useful in general, but like I wrote, *here* it is not 
needed. 

Jukka

On 23.08.20 09:59, Jukka Pakkanen wrote:
>Yes, I think the whole CNAME is useless here anyway.

CNAME is useful, but it does not (and can not) work the way you want.

>These were the recommendations of this service provider, mailgun though..

where? the CNAME issue is long known and clarifies in RFC 2181, section 10.1. 
CNAME resource records ...published in 1997.


>Lähettäjä: bind-users <bind-users-boun...@lists.isc.org> Puolesta Ben 
>Croswell
>Lähetetty: 23. elokuuta 2020 2:24
>Vastaanottaja: ML BIND Users <bind-users@lists.isc.org>
>Aihe: Re: CNAME / TXT
>
>If you uncomment that mg CNAME you end up with a CNAME mx and TXT at the same 
>node in to the DNS tree and that is illegal. That is why you get the error 
>"cname and other data". The mx and txt are the other data.
>On Sat, Aug 22, 2020, 8:19 PM Jukka Pakkanen 
><jukka.pakka...@qnet.fi<mailto:jukka.pakka...@qnet.fi>> wrote:
>Cannot figure out what is wrong here… must be something simple but 
>after sitting in airplanes the last 40 hours and it’s 2am…
>
>Only when I comment out the two lines in the end of the named.harriot, it goes 
>through and BIND load the zone. With those two lines, get the following:
>
>C:\DNS\etc\namedb>named-checkzone harriot.fi<http://harriot.fi> 
>named.harriot
>dns_master_load: named.harriot:33: mg.harriot.fi<http://mg.harriot.fi>: 
>CNAME and other data
>dns_rdata_fromtext: named.harriot:35: syntax error zone 
>harriot.fi/IN<http://harriot.fi/IN>: loading from master file 
>named.harriot failed: CNAME and other data zone 
>harriot.fi/IN<http://harriot.fi/IN>: not loaded due to errors.
>
>;
>;    File:      named.harriot
>;
>
>$TTL 864
>
>@        IN SOA                              ns1.qnet.fi<http://ns1.qnet.fi>. 
>helpdesk.qnet.fi<http://helpdesk.qnet.fi>. (
>         202008243      ; serial number
>             28800      ; refresh every 12 hours
>              7200      ; retry after 2 hours
>            604800      ; expire after 2 weeks
>              3600)     ; default ttl is 2 days
>
>harriot.fi<http://harriot.fi>.                                       IN A  
>35.214.111.143
>                                                          IN MX     10 
> qntsrv8.qnet.fi<http://qntsrv8.qnet.fi>.
>                                                          IN MX     10 
> qntsrv9.qnet.fi<http://qntsrv9.qnet.fi>.
>                                                         IN NS     
> ns1.qnet.fi<http://ns1.qnet.fi>.
>                                                         IN NS     
> ns2.qnet.fi<http://ns2.qnet.fi>.
>                                                         IN NS     
> ns3.qnet.fi<http://ns3.qnet.fi>.
>                                                          IN NS     
> ns1.z.fi<http://ns1.z.fi>.
>                                                          IN NS     
> ns2.z.fi<http://ns2.z.fi>.
>
>www                IN A 35.214.111.143
>api                     IN A 35.214.111.143
>webmail            IN CNAME mail.qnet.fi<http://mail.qnet.fi>.
>_autodiscover._tcp      IN SRV 0 5 443 mail.qnet.fi<http://mail.qnet.fi>.
>
>dev                                                                            
>   IN A      35.214.111.143
>
>; mg                                                                           
>   IN CNAME eu.mailgun.org<http://eu.mailgun.org>.
>mg                                                                             
>    IN MX                 10 mxa.eu.mailgun.org<http://mxa.eu.mailgun.org>.
>mg                                                                             
>    IN MX                 10 mxb.eu.mailgun.org<http://mxb.eu.mailgun.org>.
>mg                                                                             
>    IN TXT                v=spf1 include:eu.mailgun.org<http://eu.mailgun.org> 
>~all
>
>; smtp_domainkey.mg<http://smtp_domainkey.mg>             IN TXT "k=rsa; 
>p=MII-----AQAB"
>
>
>
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