Hi. Am Mittwoch, 15. August 2007 schrieb Deephay: > I received a type of spams frequently: mails from forged local users > ([EMAIL PROTECTED]). After <550 User unknown>, courier will > generate an bouce message to postmaster. Is there a way to deal with > this? thanks!
Please specify exactly what kind of messages you mean. For incoming mail, courier will say "550 User unknown" at SMTP level to the opposite mail server and will not generate any bounce message at all. For outgoing mail, if some of your somehow authenticated users uses a forged sender address, the described behaviour is normal, you can see which user has authenticated with courier and blame him for stupidity. ;-) In the first case, if courier gets a message from outside and CANNOT look inside the home-dir of the user if there is a .courier-File, the message gets accepted and a bounce message to the sender is issued later in the process. If this cannot be delivered, postmaster is notified. This occures, when user "mail" (or whatever you configured esmtpd to run as) has no execute-permission for the homedir of the destination user. So please tell us which messages you mean. :) cu, Bernd
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