Re: Odd request: Hosting one domain in two places

On Mon, 26 Jan 2004 dap99@i-55.com wrote:

> My only question is how to actually let Postfix and Exchange know how to
> split up the users. Here is my initial idea:
>

Use virtual_alias_maps to map the Postfix users in example.com as follows:

user2@example.com user2@localhost.example.com

also add identity mappings for the Exchange users:

user1@example.com user1@example.com

Configure transport_maps to send example.com mail to Exchange. Make sure
both example.com and localhost.example.com are in mydestination.

If you want the address class for the non-Exchange users to be "virtual
mailbox" rather than "local", change "localhost.example.com" to
"vmbox.example.com" and add both "example.com" and "vmbox.example.com" to
virtual_mailbox_domains, and configure suitable delivery (virtual(8) per
VIRTUAL_README or "maildrop" per MAILDROP_README) for
user2@vmbox.example.com.

--
Viktor.