This entry is several years old. I don't expect to get mails from efax.com
- so I don't care.
Just saw, they changed the SPF record - possibly the issue is gone.
_spf.salesforce.com text =
"v=spf1 exists:%{i}._spf.mta.salesforce.com -all"
Thomas
Von: "Daniel Miller via Assp-test" <assp-test@lists.sourceforge.net>
An: "ASSP development mailing list" <assp-test@lists.sourceforge.net>
Kopie: "Daniel Miller" <dmil...@amfes.com>
Datum: 02.10.2018 00:14
Betreff: Re: [Assp-test] large domain SPF failures
I'm sure this works - but I don't understand how. Where did you come up
with that single IP address?
---
Daniel
On 2018-09-26 22:14, Thomas Eckardt wrote:
> I use
>
> efax.com=>v=spf1 ip4:66.52.2.3 -all
>
> in 'SPFoverride'
>
> Thomas
>
> Von: "Daniel Miller via Assp-test"
> <assp-test@lists.sourceforge.net>
> An: "ASSP development mailing list"
> <assp-test@lists.sourceforge.net>
> Kopie: "Daniel Miller" <dmil...@amfes.com>
> Datum: 27.09.2018 03:22
> Betreff: [Assp-test] large domain SPF failures
>
> -------------------------
>
> We've received a quantity of junk impersonating good domains - not
> sure
> how to handle it.
>
> An example: efax.com SPF record
>
> v=spf1 mx include:_spf.salesforce.com -all
>
> So they're depending on salesforce. Ok...what do they have?
>
> v=spf1 include:_spf.google.com include:_spf.salesforce.com
> include:spf.mandrillapp.com exists:%{i}._spf.corp.salesforce.com ~all
>
> Now they check against google before their own, ok...
>
> It just goes on and on. But the initial failure:
> Maximum void DNS look-ups limit (2) exceeded.
>
> Google is probably at fault - but as usual the biggest guy around gets
>
> to do what they want.
>
> Is there a way of accommodating these nonsense configs to still use
> them
> to block impersonators?
> --
> Daniel
>
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