Author: W B Hacker
Date:
To: exim users
Subject: Re: [exim] automatically blacklisting clients that fail
SMTPauthentication
lee wrote:
> Hi,
>
> is it possible to automatically blacklist clients that repeatedly fail
> SMTP authentication? And if so, how is it done?
>
By 'clients' do you mean:
- user's who cannot type consistently or have set their MUA correctly
- *former* user's whose MUA have not had their old accounts
disabled/removed.
- apparent break-in attempts
And in any case, on which arrival port(s) and with which protocol?
The problem should go away with no need to blacklist if you get the
combination set optimally.
Bill
--
韓家標
