[Asterisk-Users] DNS SRV records

[Aaron J. Angel]

John Fraizer wrote:
>
> MX and SRV records are used to determine the appropriate 
> handler(s) for:
> 
> domain.name
> qualified.domain.name
> fully.qualified.domain.name
> more.fully.qualified.domain.name
> even.more.fully.qualified.domain.name
> 
> For example, if you had the following in the DNS zone for 
> "domain.name":
> 
...and...
> 
> Email to you at domain.name would be processed by 
> "your.mail.exchanger" and not sent to "domain.name" at it's A 
> record.  The same goes for email to 
> you at even.more.fully.qualified.domain.name.  In the event that 
> your.mail.exchanger was down, mail would be handled by 
> your.other.mail.exchanger.

Am I way behind the times or is this precisely *not* how MX and SRV records
work?  A domain is a domain.  A subdomain is just a fancier term for a
domain within another domain, and hence not treated differently.  Last I
checked, failing to have an MX record for the host.com domain did not result
in a search for an MX record defined for com when sending mail to
user at host.com...