> 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&run=toolpage
>> patpro
The details are here: https://tools.ietf.org/html/rfc4408#page-22
Also see 8. Macros / Page 27
Gerald
