On 3/5/2012 5:53 PM, Daniel L. Miller wrote:
> Is it possible to:
> 
> 1.  Rewrite the sender based on the destination?  Particular example
> - using a fax-to-email service, only one email address is allowed to
> be used.  So I want any message addressed TO
> "xxxxxxx...@faxpeople.com" to be sent FROM
> "designatedu...@mydomain.com" (from a valid client, of course).

Use a transport_maps entry to direct mail for faxpeople.com to a
custom master.cf transport (a clone of the smtp...smtp transport).
On that transport use -o smtp_generic_maps to rewrite *@yourdomain
to whatever.

http://www.postfix.org/transport.5.html
http://www.postfix.org/ADDRESS_REWRITING_README.html#generic
http://www.postfix.org/master.5.html

> 
> 2.  Rewrite the destination based on the sender.  The reverse case -
> a received fax image is returned, but instead of going to the
> original recipient, rewrite the recipient to "f...@mydomain.com" when
> the sender is "nore...@faxpeople.com" so my auto-print service will
> do its job.

This can be done with a check_sender_access map and the REDIRECT action.

http://www.postfix.org/access.5.html



  -- Noel Jones

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