Re: Multi delivery to catchallaccount

From: Victor Duchovni (no email)
Date: Thu Sep 01 2005 - 19:34:26 EDT

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    On Thu, Sep 01, 2005 at 05:59:04PM +0200, amacum.com wrote:

    > > What is the purpose of the catchall mailbox? If it is for fetchmail
    > > to retrieve the message and revive the original recipients downstream,
    > > you need the Postfix 2.x behaviour. Otherwise catchalls are a bad
    > > idea, but if you really must have them (without one delivery per
    > > original recipient), try:
    >
    > > enable_original_recipient = no
    >
    > > With the introduction of DSN (not be confused with DNS) support in
    > > Postfix 2.3 (not an official release yet), the above work-around may not
    > > be sufficient, so the advice only holds for 2.0, 2.1 and 2.2. I have not
    > > investigated how 2.3 behaves with the above setting, or whether there
    > > is another way to restore post-rewriting duplicate elimination based
    > > solely on the recipient address.
    >
    > Thank you Victor.
    > I Use Postfix 2.2.5 so i will try this setting.
    > And yes i need the catchall cause an exchangeserver get the mails,
    > checks the header and copy them to the recipients mailbox in the LAN.
    >

    In that case you MUST stop what you are doing immediately, leave the
    multi-drop support in place, and make sure that revived messages are
    delivered to X-Original-To: recipients and NEVER to the header To/Cc
    recipients. It is critical to understand the difference between the
    message envelope envelope and message headers when routing mail.

    Consider what happens when you revive a stored mail with
    "" in the "To:" or "Cc:" line. Consider loss
    of mail to "Bcc:" recipients, ...

    The Postfix 2.x feature you are trying to turn off is specifically
    designed to support multi-drop mailboxes, use it, or rethink how
    your mail is processed.

    -- 
    	Viktor.
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