[RFCI-Discuss] DNS record's TTL requirement?

[Leonard Mills]

On Jul 6, 2006, at 10:34 PM, Jeff Pang wrote:

> The MX record of a domain needs to contain a host name that maps to  
> the IP address involved. The Time to Live of the MX record needs to  
> be at least 43200 seconds.

Gee, that's extreme.  I guess that they don't believe in
DNS round robins to scatter emails across several
geographically-remote inbound clusters and to allow
for load-balancing changes tot he records.

Len