Author: Mikhail Lischuk Date: To: exim-users Subject: Re: [exim] automatically blacklisting clients that fail
SMTPauthentication
On Tue, 07 Jun 2011 21:58:20 +0000, W B Hacker wrote:
> 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
I
think for the last one fail2ban or something like that should be enough.
First two are a good example why you should be careful when tuning
fail2ban to avoid legal users blacklisting.
