How to block emails that FROM doesn't belongs to server domain list

Rob Verduijn rob.verduijn at
Thu Aug 16 13:27:58 IST 2012

add this to your dns configuration adjust for your own environment.  TXT  "v=spf1 -all"

Taken from :

It's a bit touch to read through the docs from spf
just start here and try to force your way through the docs

Ofcourse you need to explain mailscanner to check for spf records.
I'm not at work this week, so I can't give you a working example right
now you will have to wait until next week if you want that.


2012/8/16 Paul Littlefield <info at>:
> On 16/08/12 09:17, Rob Verduijn wrote:
>> I meant spf records (sender policy framework)
> That's a good idea Rob.
> I have just done a quick Google for spf +bind and cannot find a nice example.
> Any thoughts?
> Paully
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