On 10/11/2012 11:16, Jamie Paul Griffin wrote:
> It's difficult to know how you've set up your spam filter. Some more
> information would help more.
> 
> On the machine i'm using now, I don't use postfix, but I do use
> spamassassin. I have procmail recipies that use spamc to filter the
> messages. On my Mac I do use postfix and use amavisd-new, with
> spamassassin and clamav. That isn't especially relevent to you but
> it's just to highlight that people use different methods - your
> method isn't clear to me from the information you've posted so far.
> Sorry I can't be more helpful right now. It shouldn't take too long
> to provide a solution with more info.

I don't really get why you would like to help me fix something that is
working just fine. The problem I'm asking advice for is completely
unrelated to spamassassin.

What I observe is that postfix is receiving messages containing a forged
Delivered-To header that makes postfix think it is seeing a mail
forwarding loop. The local(8) daemon bounces the messages, but
those messages are spam and the from addresses are invalid, therefore
the bounces get stock in the delivery queue. This is not a problem in
itself, but I do not like to generate bounces for spam messages.

Best,
Daniele

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