Wietse Venema <wie...@porcupine.org> wrote:-
>>> Is it possible to accomplish a gradual shift of traffic from one mail relay
>> to another via postfix?
>
>The randmap() feature comes to mind.
>
>Instead of "relayhost = old.example" or "relayhost = new.example" use:
>
> default_transport =
> randmap:{smtp:old.example, smtp:old.example, smtp:new.example}
>
>Pick how many old versus new you need.
Out of interest, how does this behave if one of the servers is temporarily
unreachable?
Would Postfix try another server immediately, or defer the message until
the next try?
--
Best wishes,
Matthew
