From: Andy Cravens (acravensuen.org)
Date: Fri Jan 20 2006 - 10:32:53 CST

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I have a situation where user mail accounts are created with the
employee ID as the username. The user sets up their client with the
username they want the public to see and an alias is created for that
"public" username. Outgoing mail is fine and the email headers do not
reveal any employee ID information.

However, incoming mail shows:

X-Original-To: johndoedomain.com
Delivered-To: id64093domain.com

If the user forwards one of their emails and the headers are included,
their employee ID is revealed. Is there a way to stop postfix from
revealing the final account destination?

I've looked at enable_original_recipient but I'm not sure exactly how it
works. I'm assuming if I set it to "NO" it will stop printing the
"X-Original-To: johndoedomain.com" line and the Deliver-To line will
contain johndoedomain.com. Can someone verify this? I can't just
start changing parameters on our mail system to see what will happen.

Thanks for any clarification you can provide.

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