[IMail Forum] Dictionary attack ?

[imail]

Hi, I have similar problems like it is writen in this
thread:
http://www.mail-archive.com/imail_forum@list.ipswitch.com/msg30519.html

How can I find out s.o. who does a dictionary attack IP-wise ?
I haven't seen any IP I could block when he or she started the weirdo attack
!
('Cause it is difficult to realize when exactly the attack starts.)

What tools would you recommend to face those attacks ?

Thanks for ideas.

Uwe


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