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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