Re: [SPAM] Re: [vchkpw] Prevent certain users from send emails outside the local domain.

On 06/08/2012 04:43 AM, Todor Petkov wrote:
> On 06/08/2012 01:04 PM, Pritam D. Gautam wrote:
>> Hi,
>>
>> I am required to prevent certain users on my Qmail Server from sending
>> emails to outside domain.
>> In my understanding, only IP Addresses can be prevented from relaying!
>> But that's something which does not work in my environment considering
>> we have DHCP setup.
>>
>> Any help will be appreciated.
>>
>> Regards,
>>
>>
>>
>>
>
> Hello,
>
>
> not 100% sure, but I think you can do it via vmoduser and adding -r flag
> to the user. This, however, will require smtp auth usage.
> For more information, look at http://www.qmailwiki.org/Vpopmail#vmoduser
>
>
>
> Regards,
>

That's an interesting approach. I think you'd want to use the -s flag 
for the user, then configure their email client to not authenticate. 
Local email would be accepted (for all domains on the host though, not 
strictly inter-domain), and relaying would be rejected.

I think eMPF (as Amit suggested) is a nicer solution though. It's more 
straight forward, and has more flexibility to control this sort of 
thing. Not surprising, as that's what it was created to do.

-- 
-Eric 'shubes'


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