Ole Wolf <[EMAIL PROTECTED]> writes:
>>The logic that I will soon be putting into my "courierperlfilter"
>>is something like this (pseudo-code):
>>
>> if address in ( <whitelist> )
>> accept message
>> else if envelope-domain != sender-domain
>> reject messasge
>> else if envelope-domain in ( hotmail.com excite.com [ etc ... ] )
>> reject message
>> endif
>
> I presume the last "else if" in the pseudocode above should be:
>
> else if envelope-domain in ( <blacklist> )
Well, yes. I just would call this a "domain blacklist" to distinguish
it from a simple "blacklist". This domain blacklist only contains
domain names such as hotmail.com. etc. The simple blacklist is the TMDA
blacklist which contains full addresses (i.e., [EMAIL PROTECTED]).
> Also, you need a default action in the pseudocode. I believe the default
> action should be to accept the message at the MTA level, unless I'm missing
> something. Accepting the message by default would then make it unnecessary
> to check the whitelist. In its entirety, the pseudocode then becomes:
>
> if envelope-domain != sender-domain
> reject message
> else if envelope-domain in ( <blacklist> )
> reject message
> else
> accept message
> endif
>
> What do you think?
Yep. My code was an oversimplification. There is more testing that is
done after my "endif". I think that the TMDA blacklist might be used,
as well. Also note that all whitelisted addresses must be accepted.
For example, this allows me to accept email from [EMAIL PROTECTED],
irrespective of whether his or her envelope domain and sender domain
match.
So how 'bout this?
if address in ( <whitelist> )
accept message
else if envelope-domain != sender-domain
reject message
else if envelope-domain in ( <domain-blacklist> )
reject message
else
(perform system-specific testing, possibly including tests
via the TMDA blacklist)
if testing fails
reject message
else
accept message
endif
endif
--
Lloyd Zusman
[EMAIL PROTECTED]
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