From: Andrea Fino (affaino.org)
Date: Sat Oct 08 2005 - 11:53:15 CDT

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Hi,

I am having a lot of NOQUEUE event for a domain, the reason is not
existent mailbox:

"User unknown in virtual mailbox table"

The error is true, those email are not existant in the postfix install.

But I have a lot! they come from many ip, so block the ip table is not
an option. Moreover, when the primary does not satisfy enough requestes,
they go to the bmx, that of course return back to the main mta.

There is any way to not have a system collapsed from a traffic like that?

Regards,
Andrea

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