[Gllug] Postfix and masquerading

[Jack Bertram]

* John Edwards <John.Edwards at cornerstonelinux.co.uk> [050110 19:31]:
> On Mon, Jan 10, 2005 at 04:34:15PM +0000, Jack Bertram wrote:
> > I've recently installed Ubuntu in place of my old home-grown Linux
> > system and have forgotten what setting I changed in Postfix to stop it
> > rewriting the addresses of local users before sending.
> 
> Anyway the usual setting that rewrites addresses in the headers 
> is the "canonical_maps" option - which is usually a hash file 
> called "canonical". Have a look at the main.cf and see if you 
> have anything set for "canonical_maps". Also you will need to 
> rebuild the hash db after editing the "canonical" text file.

Great - "canonical" was the keyword that I was looking for.  In Postfix
2.0 it turns out that there is a "canonical_classes" parameter which by
default ensures that envelope and header senders are rewritten.

Many thanks.

jack
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