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exim attacked

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linux-howto

http://forums.cpanel.net – Hello all, I was frustrating with our Hosting support, they does not do anything with my problem (more then 7 days, just respond with "We are requesting the data center mitigate the attack.") Ok, here is the problem. My server was attacked on smtp/exim services, this make our mailserver busy and the "real" mailserver and our client sometimes got time out message, some email come too late, more then 25 minutes - 1 days (24h). For temporary solution i was increase the smtp_accept_max = 200 On the exim_mainlog i was found many error, some of them is like this: (HowTos)