Re: [exim] Drop smtp connection before authentication

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Autor: Edison F Carbol
Data:  
Dla: Dave Evans, exim-users
Temat: Re: [exim] Drop smtp connection before authentication
Hi Dave,

My server is under a kind of attack. Lot of connections are trying to
authenticate with the same username that doesn´t exist.

I´d like to drop all connections from a specific username before smtp
authentication or any layer above.

Is it possible to get the username at acl_smtp_auth?

Thanks,


Edison


> Hi,
>
> Is it possible to drop smtp connection before authentication per username?
>
> My server is congested with many attempts to authenticate with a deleted
> account.


Sorry, I don't really understand your question.

You can probably drop the connection wherever you want to - Exim is pretty
flexible - but presumably you want to drop only /some/ connections, not all
of
them. What criteria do you intend to use to distinguish between the two?
At
what phase of the SMTP transaction would you like the connection to be
dropped?

--
Dave Evans
http://djce.org.uk/
http://djce.org.uk/pgpkey