Re: question on a SPF setting
Dnia 27.11.2019 o godz. 16:37:39 @lbutlr pisze:
> On 27 Nov 2019, at 16:31, @lbutlr wrote:
> > On 27 Nov 2019, at 00:15, Wesley Peng wrote:
> >> -exists:%{ir}.spf.rambler.ru
> >
> > That expands to if the IP address (reverse check) plus /spf/rambler.ru
> > exists…
> >
> > So, of you see a connection from 1.2.3.444 and 1.2.3.444.spf.rambler.ru
> > exists, pass the spf check.
>
> Sorry, it 444.3.2.1.spf.rembler.ru exists (that’s the ‘r’ in ir).
There is "-" before "exists", so I guess it should fail SPF check in that
case, not pass?
Looks like they have implemented some sort of RBL under spf.rambler.ru
domain and that entry in the SPF record makes IP addresses that are on that
RBL fail SPF check.
--
Regards,
Jaroslaw Rafa
r...@rafa.eu.org
--
"In a million years, when kids go to school, they're gonna know: once there
was a Hushpuppy, and she lived with her daddy in the Bathtub."
Re: question on a SPF setting
On 27 Nov 2019, at 16:31, @lbutlr wrote:
> On 27 Nov 2019, at 00:15, Wesley Peng wrote:
>> -exists:%{ir}.spf.rambler.ru
>
> That expands to if the IP address (reverse check) plus /spf/rambler.ru exists…
>
> So, of you see a connection from 1.2.3.444 and 1.2.3.444.spf.rambler.ru
> exists, pass the spf check.
Sorry, it 444.3.2.1.spf.rembler.ru exists (that’s the ‘r’ in ir).
--
> I miss the old days. I haven't killed anyone in years.
>
That's sad.
Re: question on a SPF setting
On 27 Nov 2019, at 00:15, Wesley Peng wrote:
> -exists:%{ir}.spf.rambler.ru
That expands to if the IP address (reverse check) plus /spf/rambler.ru exists…
So, of you see a connection from 1.2.3.444 and 1.2.3.444.spf.rambler.ru exists,
pass the spf check.
--
Fairy Tales are more than true; not because they tell us that dragons
exist, but because they tell us that dragons can be beaten.
Re: question on a SPF setting
> Thanks.
> While I am still not clear about what the description in mxtoolbox.
> Can you give more details?
>
> regards.
>
> on 2019/11/27 16:08, patpro wrote:
>> On 2019-11-27 08:15, Wesley Peng wrote:
>>> Hello
>>>
>>> I saw myrambler.ru has a special setting for SPF:
>>>
>>> myrambler.ru. 3599IN TXT "v=spf1
>>> ip4:81.19.78.96/27 ip4:81.19.78.0/27 ip4:81.19.88.0/24
>>> -exists:%{ir}.spf.rambler.ru ~all"
>>>
>>> what does it mean for this part:
>>>
>>> -exists:%{ir}.spf.rambler.ru
>> You'll find an explanation here:
>> https://mxtoolbox.com/SuperTool.aspx?action=spf%3amyrambler.ru=toolpage
>> patpro
The details are here: https://tools.ietf.org/html/rfc4408#page-22
Also see 8. Macros / Page 27
Gerald
Re: question on a SPF setting
On 2019-11-27 09:31, Wesley Peng wrote: Thanks. While I am still not clear about what the description in mxtoolbox. Can you give more details? I've never used the "exists" keyword, it's for more advanced use case and rely on SPF macros. You'll find some examples online, like here: https://scotthelme.co.uk/email-security-spf/ A more complete source can be found in the SPF RFC: https://tools.ietf.org/html/rfc7208#section-7.2 regards
Re: question on a SPF setting
Thanks.
While I am still not clear about what the description in mxtoolbox.
Can you give more details?
regards.
on 2019/11/27 16:08, patpro wrote:
On 2019-11-27 08:15, Wesley Peng wrote:
Hello
I saw myrambler.ru has a special setting for SPF:
myrambler.ru. 3599 IN TXT "v=spf1
ip4:81.19.78.96/27 ip4:81.19.78.0/27 ip4:81.19.88.0/24
-exists:%{ir}.spf.rambler.ru ~all"
what does it mean for this part:
-exists:%{ir}.spf.rambler.ru
You'll find an explanation here:
https://mxtoolbox.com/SuperTool.aspx?action=spf%3amyrambler.ru=toolpage
patpro
Re: question on a SPF setting
On 2019-11-27 08:15, Wesley Peng wrote:
Hello
I saw myrambler.ru has a special setting for SPF:
myrambler.ru. 3599IN TXT "v=spf1
ip4:81.19.78.96/27 ip4:81.19.78.0/27 ip4:81.19.88.0/24
-exists:%{ir}.spf.rambler.ru ~all"
what does it mean for this part:
-exists:%{ir}.spf.rambler.ru
You'll find an explanation here:
https://mxtoolbox.com/SuperTool.aspx?action=spf%3amyrambler.ru=toolpage
patpro
