OSEC

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Re: Suppress "Command died with status 1" in Pipe transport

From: Wietse Venema (wietseporcupine.org)
Date: Fri Jun 18 2010 - 05:50:31 CDT


Adam:
> Good Morning,
>
> Is there a way to hide the syserr as well as the path returned by a
> pipe transport? For instance, I have virtual accounts and they are
> handled by a custom transport. When a message is sent to a
> non-existent user, the mailer-daemon response to the sender is:
>
> <bobexample.com>: Command died with status 1:
> "/usr/lib/xmail/postfix/vmtransport". Command output: Unknown user.
> The user "bob" does not exist at "example.com".

DO NOT ACCEPT MAIL FOR NON-EXISTENT USERS.

Your system is sending back SPAM to innocent people who did not send it.

        Wietse