In response to "Dave C.":
> One thing that CNAMES does allow is for grouping/seperation..
>
> Say I have three large groups of domains for which I provide three
> different types of service, lets call the services I provide foomail,
> barmail, and bazmail. I currently provide all three services on the
> same physicial server, which has its REAL hostname. but I want to
> preserve the option of easily splitting them out to seperate servers
> once the load increases. I illustrate with an example:
> dom1.com in MX 10 barmail.mydomain.com.
> dom2.com in MX 10 barmail.mydomain.com.
> dom1.net in MX 10 foomail.mydomain.com.
> dom2.net in MX 10 foomail.mydomain.com.
etc
realname.mydomain.com. in A 210.33.44.5
barmail.mydomain.com in A 210.33.44.5
foomail.mydomain.com in A 210.33.44.5
> Assuming 100+ domains in each group, its a LOT easier to just change
> one CNAME, than to change the MX records for each and every one of the
> domains.
Isn't it as easy to change the A record?
Gyan.
