[CentOS] mixing MX and CNAME

aurfalien aurfalien at gmail.com
Mon Feb 25 16:59:53 UTC 2013


On Feb 25, 2013, at 8:21 AM, Jerry Franz wrote:

> On 02/25/2013 08:06 AM, aurfalien wrote:
>> Hi,
>> 
>> Has any one had problems with mail clients were your DNS is like this;
>> 
>> doman.com	MX	50 mail.domain.com
>> domain.com	MX	100	mail2.domain.com
>> 
>> domain.com	CNAME	www.domain.com
>> 
>> 
> 
> The short answer is you can't do that and expect it to work because you can't mix CNAME and other types of records for a hostname. It is simply an invalid configuration at a DNS level.
> 
> Read http://en.wikipedia.org/wiki/CNAME_record#Restrictions
> 
> -- 
> Benjamin Franz

Forgot, i did allow this for a few weeks and mail broke as well as the wild card SSL ceasing to work as it has;

*.domain.com
domain.com

At any rate, I will insist that mixing MX/CNAME will not be possible but wanted to see if I missed something.

Hence this seemingly basic posting t the list.

- aurf


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