We've just moved our hosting to a new linux server running Qmail with SpamAssassin.

We have hit a problem in that SpamAssassin appears to be changing the normal email message headers with it's own. Some accounts are catch-all mail accounts that are then downloaded to other mail servers that use some of the normal header fields, such as Envelope-to:, X-Original-To: and X-copy to: to direct the mail to the final mailbox destination.

Has anybody got any idea how we can configure SpamAssassin to either leave the standard headers provided by Qmail, or to add the above fields to the new headers.

Thanks in anticipation.