Christian Recktenwald:
> Hi,
> 
> due to some configuration error I've some deferred messages.
> The error's been fixed but the files are still there.
> 
> Now I'd like to change the envelope-from inside the queue files 
> and requeue them.
> 
> How is this done?

Specify the address mapping with main.cf:canonical_maps,
then "postsuper -r ALL" to re-massage email addresses.

If you must also edit message headers, then that may require
playing with main.cf: local_header_rewrite_clients.

http://www.postfix.org/ADDRESS_REWRITING_README.html
http://www.postfix.org/postconf.5.html#canonical_maps
http://www.postfix.org/postconf.5.html#local_header_rewrite_clients

> If by chance someone could provide a pointer to the documentation
> of the queue file format this would be appreciated as well.

The file format is private. Modification by non-Postfix programs
breaks the warranty, meaning no support.

        Wietse

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