[Dovecot] script to detect dictionary attacks

[Reindl Harald]

Am 06.04.2013 23:48, schrieb Professa Dementia:
> Both of the following I have experienced:
> 
> 1) Excessive spam and hacking from China.  I blocked China.  Then I got a client that did business in China and had
> a branch office there. Suddenly I cannot block login attempts from China.  And the users complains loudly about the
> excessive reject rate of legitimate emails from Chinese customers due to the spam filters.

again:

* i am on the dovecot list
* i speak about dictionary attacks on POP3/IMAP
* reject rate is not a topic here

well, even if i would speak about the MTA it would not be a topic
the MTA is a commercial spam-appliance and postfix not directly the MX

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