[exim] Spam block

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Lähettäjä: Khaled Hussein
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Vastaanottaja: exim-users@exim.org
Aihe: [exim] Spam block
Hi All,

i am using Exim4 on FreeBSD 6.0, i have a problem that from time to time
one of my customers (we are ISP) send through my server a huge amount of
emails mostly to yahoo.com domain, so yahoo start deferring my server IP
and sometimes i change the IP address or wait till yahoo open it again,
so how can i make exim catch like these spams or attacks, because the IP
address of the sender is one of our IPs and his email address is correct
and exist on my server, so what is the best solution so i can catch
these attacks

Thanks in advance
-
Regards,
******************************
Khaled J. Hussein
System Manager
Hadara Technologies Group
khaled@???
http://www.palnet.com
Tel. +972 2-240-3434
Fax. +972 2-240-3430
******************************