>registry then edit and re-import it. Voila, done. Not so fast. The DNS
>TTL problem.
A 3rd solution:
I think you can do this, about 99% of it, completely at the DNS
level. Just change the MX record for the moved domain(s).
Yr pt about TTL is valid. For the week before you do the move, reduce the
TTL in 2 or 3 hops towards the minimum of 1 hour TTL. Then on the scheuled
swapover day, move the domain on your LAN and change the MX record, then
increase the TTL to something more realistic.
The pre-move short TTL value will assure that any Internet-cached MX
records will be discarded and your DNS with new MX value will be used and
the new mail server will get the mail. with such a short TTL, the remote
sending servers that do happen to use the old MX value will certainly retry
for much longer than the 1 hour TTL and eventually get the new MX value.
Len
=================
>Mail will still go to the old server for some time. So the
>question arises that I need to get the mail out of the old boxes, and into
>the new ones. I have 2 possible solutions, but I don't know if either will
>work, but whatever the solution, it needs to be automated, as there are FAR
>to many users to do it all by hand. Here they are:
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