[SASAG] DNS Propagation

eric at kahklen.com eric at kahklen.com
Mon Aug 17 09:14:49 PDT 2009


Our DNS is hosted and the TTL is 3600.

Thanks,
Eric

On Mon, 17 Aug 2009 09:02:40 -0700, Tres Wong-Godfrey <tres at apollonian.net>
wrote:
> 
> Sorry if I'm misunderstanding the question, but isn't this entirely
> dependent on your TTL?
> 
> You may want to update the TTL to something like 3600 24 to 48 hours
> before your changeover, you should be ready for a quick changeover
> (assuming that the current TTL is 86400 -- or 24 hours). This will
> cause a little more traffic to your DNS severs, but it shouldn't be
> that much (heck, gmail has a 3600 TTL).
> 
> Either way, the remote MX should keep their mail in the queue and
> retrying for days before it becomes a real issue with bounced mail.
> 
> 
> 
> On Aug 17, 2009, at 8:54 AM, <eric at kahklen.com> wrote:
> 
>> I need to change my MX record to our new public IP.  My preference
>> is to
>> change it after hours on a Friday to allow DNS to propagate.  What
>> sort of
>> time frame have people seen with DNS propagation?  We only have one MX
>> record.
>>
>> Thanks,
>> Eric
>>
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