Re: [cobalt-users] MX quick question!

["E.B. Dreger" <eddy+public+spam@xxxxxxxxxxxxxxxxx>]

> Date: Thu, 23 Jan 2003 12:55:22 -0000
> From: adam


> I’m wondering if I can tell them to change the MX records to point at my
> Raq, to act as a temporary mailserver. I can set up mail accounts for
> all the required users using the Raq shell tools. With MX records now
> pointed at my Raq.. that would work wouldn’t it??

Short answer: yes, but...


> My key question is, upon changing the MX records would email instantly
> switch to the new setting.. or does this change need to propagate ?

...all DNS changes need to propagate.


> It’s my thinking that it is only changing the DNS servers on a domain
> that takes time to propagate. Changing the records on a DNS server, so
> long as it is restarted afterwards, is instant ?

Once restarted, the new DNS records are available instantly, but
various nameservers have cached the old info.


> So I can change the MX to the Raq, use that till the mailserver comes
> back, then switch back.. without any 24/72 hour propagation periods. Am
> I right?

No.  Various places have cached the old MX and IP address.


> Thanks for your help!


Eddy
--
Brotsman & Dreger, Inc. - EverQuick Internet Division
Bandwidth, consulting, e-commerce, hosting, and network building
Phone: +1 (785) 865-5885 Lawrence and [inter]national
Phone: +1 (316) 794-8922 Wichita

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