%rules-dir%/spam.whitelist.rules

[Alex Neuman van der Hans]

Scott Silva wrote:
> Alex Neuman van der Hans spake the following on 5/30/2007 10:36 AM:
>   
>> I'd like to know if, like in:
>>
>> From:   1.2.3.   yes # Whitelist everything that *begins with* 1.2.3. in
>> its IP Address
>>
>> one could:
>>
>> From:   *.blableble.com     yes     # ... do the same with everything
>> that reverse-resolves to something.blableble.com
>> or
>> From:   .blableble.com   yes # or this way...
>>     
> Should work, but will open you up to every spam mail that pretends to come
> from that domain. But I think the above will only match sub-domains of
> blableble.com, like server1.blableble.com or otherserver.blableble.com
>
>   
True, but I'd like to match the reverse DNS and not the HELO, the SMTP 
sender, or the Envelope Sender. Makes it harder to supplant 
.blableble.com since you'd have to have control of the PTR record for 
your IP.

This I'd like to do mostly for e-mail coming from blackberries and such 
that use someone else's server. SPF is already set up this way, but I'd 
like to take it one step further.