Re: Help needed to stop spoofed mails

On 02/01/2010 10:09 AM, Piyush Joshi wrote:
> Dear All,
>                I am running qmail-ldap set up for my domain and now i
> need not to accept any mail from unknown ip address on port 25 having
> mail from address *@mydomain.com.
>
> I want to do this to stop accepting forged mails which contains mail
> from address of my domain.
>
> Let me know is it possible or not or if any of you have any solution
> for this problem.
>
> --
> Regards
>
> ******************************
> Piyush Joshi
> System administrator
> ******************************
> "Ability is what you're capable of doing. Motivation determines what
> you do. Attitude determines how well you do it"
>
>    


Hello again Piyush,

I actually forgot that i had a backup of the single patch file.

Just apply the patch to the source and recompile.

Basically you only have to define SENDERCHECK="AUTH", in your tcpserver 
rules file, for the networks you wish to apply the restriction.

I've been using it for over a year now in a couple of servers and it's 
been working without any issue. But if you, or anyone, find any drawback 
that i'm not aware of, please let me know.

Regards,

Hugo Monteiro.

-- 
fct.unl.pt:~# cat .signature

Hugo Monteiro
Email	 : [email protected]
Telefone : +351 212948300 Ext.15307
Web      : http://hmonteiro.net

Divisão de Informática
Faculdade de Ciências e Tecnologia da
		   Universidade Nova de Lisboa
Quinta da Torre   2829-516 Caparica   Portugal
Telefone: +351 212948596   Fax: +351 212948548
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fct.unl.pt:~# _