0 / 10
Lookups
0
Issues
641
IPv4 addresses
1.21 ⋅ 10
24
IPv6 addresses
v=spf1 ip4:202.112.0.0/26 ip4:202.38.109.0/24 ip4:101.4.62.0/24 ip6:2001:250:c006::/48 ip4:1.51.2.0/26 ip4:1.51.2.209 ip6:2001:250:2::/64 -all
Copied
Terms
ip4:
202.112.0.0 / 26
pass
if the sender's IP is between
202.112.0.0 and 202.112.0.63 (inclusive).
202.112.0.0 and 202.112.0.63 (inclusive).
China Education and Research Network Center
AS4538
or else
ip4:
202.38.109.0 / 24
pass
if the sender's IP is between
202.38.109.0 and 202.38.109.255 (inclusive).
202.38.109.0 and 202.38.109.255 (inclusive).
China Education and Research Network Center
AS4538
or else
ip4:
101.4.62.0 / 24
pass
if the sender's IP is between
101.4.62.0 and 101.4.62.255 (inclusive).
101.4.62.0 and 101.4.62.255 (inclusive).
China Education and Research Network Center
AS4538
or else
ip6:
2001:250:c006:: / 48
pass
if the sender's IP is between
2001:250:c006:: and 2001:250:c006:ffff:ffff:ffff:ffff:ffff (inclusive).
2001:250:c006:: and 2001:250:c006:ffff:ffff:ffff:ffff:ffff (inclusive).
CERNET2 IX at Tsinghua University
AS24348
or else
ip4:
1.51.2.0 / 26
pass
if the sender's IP is between
1.51.2.0 and 1.51.2.63 (inclusive).
1.51.2.0 and 1.51.2.63 (inclusive).
China Education and Research Network Center
AS4538
or else
ip4:
1.51.2.209 / 32
pass
if the sender's IP is between
1.51.2.209 and 1.51.2.209 (inclusive).
1.51.2.209 and 1.51.2.209 (inclusive).
China Education and Research Network Center
AS4538
or else
ip6:
2001:250:2:: / 64
pass
if the sender's IP is between
2001:250:2:: and 2001:250:2:0:ffff:ffff:ffff:ffff (inclusive).
2001:250:2:: and 2001:250:2:0:ffff:ffff:ffff:ffff (inclusive).
CERNET2 IX at Tsinghua University
AS24348
or else
-all
fail
the email's SPF check.
Included records
v=spf1 ip4:202.112.0.0/26 ip4:202.38.109.0/24 ip4:101.4.62.0/24 ip6:2001:250:c006::/48 ip4:1.51.2.0/26 ip4:1.51.2.209 ip6:2001:250:2::/64 -all
IP ranges
202.112.0.0
/ 26
China Education and Research Network Center
AS4538
202.112.0.0 - 202.112.0.63
64 IP addresses
202.38.109.0
/ 24
China Education and Research Network Center
AS4538
202.38.109.0 - 202.38.109.255
256 IP addresses
101.4.62.0
/ 24
China Education and Research Network Center
AS4538
101.4.62.0 - 101.4.62.255
256 IP addresses
2001:250:c006::
/ 48
CERNET2 IX at Tsinghua University
AS24348
2001:250:c006::
2001:250:c006:ffff:ffff:ffff:ffff:ffff
1.51.2.0
/ 26
China Education and Research Network Center
AS4538
1.51.2.0 - 1.51.2.63
64 IP addresses
2001:250:2::
/ 64
CERNET2 IX at Tsinghua University
AS24348
2001:250:2::
2001:250:2:0:ffff:ffff:ffff:ffff