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http://bugs.exim.org/show_bug.cgi?id=1511
Lena <Lena@???> changed:
What |Removed |Added
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--- Comment #4 from Lena <Lena@???> 2014-07-30 18:21:25 ---
> Seeing more and more attempts to login with bogus criteria
> so a "message" modifier for all the authenticators would be useful.
> Thus the IPs concerned can be placed in a blacklist.
> A message along the lines of:
> "535 Too many wrong login attempts, account has been locked"
> or
> "535 You cannot login from this blacklisted host"
> would be useful for users.
Config code which places such IP-addresses in a local blacklist
and locks further connection attempts:
https://github.com/Exim/exim/wiki/BlockCracking
That code both locks IP-addresses which repeatedly try wrong
username+password combinations
and locks accounts abused for outgoing spam
(with authentication using stolen passwords).
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