rewriting incoming mail header

[Matt Zagrabelny]

Greetings Postfix Users,

I have a need to rewrite part of the incoming mail header before local
delivery.

The "To:" header looks like:

To: The default queue via RT <corresp...@example.com>

and I need to remove the descriptive part of the email address so that it
looks like:

To: <corresp...@example.com>

Sometimes the header will have arbitrary data, so I would need to match
something like:

To: .*?<corresp...@example.com>$

I'm running version 2.9.6.

Does anyone have any pointers for me for rewriting the headers?

Thanks,

-m