7 / 10
Lookups
1
Issue
460,071
IPv4 addresses
2.19 ⋅ 10
24
IPv6 addresses
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable.
v=spf1 ip4:196.4.160.0/24 ip4:196.26.208.0/24 ip4:196.26.5.0/24 mx ptr include:is.co.za ~all
Copied
Terms
ip4:
196.4.160.0 / 24
pass
if the sender's IP is between
196.4.160.0 and 196.4.160.255 (inclusive).
196.4.160.0 and 196.4.160.255 (inclusive).
Dimension Data
AS3741
or else
ip4:
196.26.208.0 / 24
pass
if the sender's IP is between
196.26.208.0 and 196.26.208.255 (inclusive).
196.26.208.0 and 196.26.208.255 (inclusive).
Dimension Data
AS3741
or else
ip4:
196.26.5.0 / 24
pass
if the sender's IP is between
196.26.5.0 and 196.26.5.255 (inclusive).
196.26.5.0 and 196.26.5.255 (inclusive).
Dimension Data
AS3741
or else
mx
pass
if the sender's IP address is in the A or AAAA record of this domain.
2 IPv4 addresses
or else
PTR checks should no longer be used. See
RFC 7208, section 5.5
.
or else
include:
is.co.za
Evaluate this SPF record and
pass
if it
passes.
This include does nothing if the included record returns fail, soft fail, or neutral.
or else
~all
soft fail
the email's SPF check.
Included records
v=spf1 ip4:196.4.160.0/24 ip4:196.26.208.0/24 ip4:196.26.5.0/24 mx ptr include:is.co.za ~all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable
10 x ip4 a:grumpy.is.co.za a:bashful.is.co.za a:c.spf.service-now.com include:spf.protection.outlook.com -all
6 x ip4 5 x ip6 -all
IP ranges
2a01:111:f403:8000::
/ 51
Microsoft
AS8075
2a01:111:f403:8000::
2a01:111:f403:9fff:ffff:ffff:ffff:ffff
2a01:111:f403:c000::
/ 51
Microsoft
AS8075
2a01:111:f403:c000::
2a01:111:f403:dfff:ffff:ffff:ffff:ffff
2a01:111:f403:f000::
/ 52
Microsoft
AS8075
2a01:111:f403:f000::
2a01:111:f403:ffff:ffff:ffff:ffff:ffff