10 / 10
Lookups
1
Issue
477,962
IPv4 addresses
2.19 â‹… 10
24
IPv6 addresses
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable.
v=spf1 a mx ptr ip4:72.240.1.0/24 include:appriver.com ?all
Copied
Terms
a
pass
if the sender's IP address is in the A or AAAA record of this domain.
or else
mx
pass
if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
or else
PTR checks should no longer be used. See
RFC 7208, section 5.5
.
or else
ip4:
72.240.1.0 / 24
pass
if the sender's IP is between
72.240.1.0 and 72.240.1.255 (inclusive).
72.240.1.0 and 72.240.1.255 (inclusive).
Buckeye Cablevision
AS13490
or else
include:
appriver.com
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
Don't state if this IP is allowed to send this email.
Included records
v=spf1 a mx ptr ip4:72.240.1.0/24 include:appriver.com ?all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable
include:spf1.appriver.com include:spf2.appriver.com include:spf.protection.outlook.com include:rnmk.com ~all
7 x ip4 ~all
12 x ip4 ~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