[imp] IMP Abuse (was Howto remove client IP-Address)

[Listaccount]

Zitat von Jan Schneider <jan at horde.org>:

> Zitat von Listaccount <lst_hoe01 at kwsoft.de>:
>
>> Zitat von Liam Hoekenga <liamr at deathstar.org>:
>>
>>> Jan Schneider wrote:
>>>> Zitat von Kevin Konowalec <webadmin at ualberta.ca>:
>>>>
>>>>
>>>>> This is exactly what we did.  Since you can change your "from" and
>>>>> "reply-to" fields in your identities it became necessary to embed the
>>>>> user's actual login ID in an X-header so that we can identify the
>>>>> source of spam.  We also took it one step further and added a bit of
>>>>> code that keeps a running total of the number of recipients a user
>>>>> has sent to in a given session (stored in the memcache session
>>>>> variable itself).  Then we've set limits so that if a message has
>>>>> more than 50 recipients per message it will refuse to send it (we
>>>>> display a message saying that it's much more appropriate to use a
>>>>> mailman list for messages of that size).   Plus if the cumulative
>>>>> total recipients per session is over 200 it will no longer allow the
>>>>> user to send mail (until they log in again with a clean session).
>>>>> We've nailed a whole bunch of spammers with this functionality with
>>>>> the added bonus of getting people who maintain large mailing lists to
>>>>> use the list server rather than Imp, which is better for all concerned.
>>>>>
>>
>>
>> It would be *really* nice if one can limit the mail addresses a user
>> can set to the ones the administrator has tied to the account. Instead
>> of entering free text it should be a list-box with addresses from the
>> database.
>
> This is already possible and has always been, at least since IMP 3,
> probably earlier.
>
> Jan.

Could you please explain on how we can do this? I have never seen a  
configuration option which sound like what we need.

Many thanks

Andreas

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To: stephan at spamschlucker.org