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MacSuperSonic

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For about 8 hours I'm getting the following error:

[04/Jun/2012 18:42:41] SMTP: Invalid password for user user<_at_>domain.com. Attempt from IP address xxx.xx.xx.x


The attempts are coming from different IP addresses. Now I have activated the two options in the advanced setting for password guessing. But message still appears without the IP is being blocked or the user is being deactivated Mad

Also that are many different ip addresses (about 10) every ip address has tried it about one to three times per minute. What's the trigger for being accepted as a password guess?
Can i modify that number somewhere in the settings?

[Updated on: Mon, 04 June 2012 18:50]

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MacSuperSonic

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PS: I know that with that speed they're guessing month and years, but I would like to stop that attempts.
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MacSuperSonic

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No idea? It has blocked 83 IPs in 3 days. But still get spammed with that attempts Sad
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tonyswu

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Kerio 7.3 or newer has anti-hammering, or you could always block that IP altogether from your firewall.
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