On Sat, Jul 26, 2003 at 08:39:14AM -0500, Len Conrad wrote:

> The easiest is to have somebody give you backup MX support where the 
> backup  MX has a queue lifetime longer than the relocate time, say 1 day.

http://www.rfc-editor.org/rfc/rfc2821.txt

4.5.4.1 Sending Strategy

...
 Retries continue until the message is transmitted or the sender gives
   up; the give-up time generally needs to be at least 4-5 days.

/

The move is less then 5 days so there is no need for backup MX.
And (most) backup MXs don't have the ability to lookup if the recipient
address exist (local_recipient_maps in postfix) so they accept ALL mail
for domain they are backup mx for.



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Replies

[isp-dns] Re: Relocatiing servers with minimum downtime, Patrick Giagnocavo +1.717.201.3366

Replies

[isp-dns] Relocatiing servers with minimum downtime, Bhavin Modi

[isp-dns] Re: Relocatiing servers with minimum downtime, Len Conrad