Hi Steve, I implemented the idea, and it works treat. I’m on OSX 10.11, and apart from a few directory changes, (and my bad spelling) - no problems.
Interesting idea and an excellent script. Thanks for the work. I understand now what it’s doing. Robert > On 23 Nov 2015, at 23:54, Steve Jenkins <st...@stevejenkins.com> wrote: > > On Mon, Nov 23, 2015 at 1:48 PM, rob...@chalmers.com.au > <mailto:rob...@chalmers.com.au> <rob...@chalmers.com.au > <mailto:rob...@chalmers.com.au>> wrote: > Interesting article Steve. What happens when/if they change ip blocks in > between cron runs? > and I can't help thinking this may be a little redundant though, with spf, > dkim and dmarc in place the source of the email is checked and acted upon > accordingly. > > Hi, Robert. As Noel pointed out, this all occurs way before SPF, DKIM, and/or > DMARC come into play. > > As for what happens if they IP blocks change between cron runs, a spammer > would have to take control of an old Google or Microsoft netblock in order to > increase any risk, which is unlikely. > > And since this is a whitelist, any new IPs that haven't been picked up in the > no more than 7 days since the last query would be evaluated by Postscreen per > normal... and would likely still get through. Robert Chalmers rob...@chalmers.com <mailto:rob...@chalmers.com>.au Quantum Radio: http://tinyurl.com/lwwddov Mac mini 6.2 - 2012, Intel Core i7,2.3 GHz, Memory:16 GB. El-Capitan 10.11. 2TB Storage made up of - Drive 0:HGST HTS721010A9E630. Upper bay. Drive 1:ST1000LM024 HN-M101MBB. Lower Bay
