0 / 10
Lookups
0
Issues
90
IPv4 addresses
0
IPv6 addresses
v=spf1 ip4:71.18.16.0/28 ip4:71.18.16.16/30 ip4:71.18.17.0/27 ip4:71.18.17.32/28 ip4:71.18.17.48/31 ip4:71.18.18.0/29 ip4:71.18.18.8/31 ip4:71.18.19.0/29 ip4:71.18.19.8/31 ~all
Copied
Terms
ip4:
71.18.16.0 / 28
pass
if the sender's IP is between
71.18.16.0 and 71.18.16.15 (inclusive).
71.18.16.0 and 71.18.16.15 (inclusive).
Bytedance
AS396986
or else
ip4:
71.18.16.16 / 30
pass
if the sender's IP is between
71.18.16.16 and 71.18.16.19 (inclusive).
71.18.16.16 and 71.18.16.19 (inclusive).
Bytedance
AS396986
or else
ip4:
71.18.17.0 / 27
pass
if the sender's IP is between
71.18.17.0 and 71.18.17.31 (inclusive).
71.18.17.0 and 71.18.17.31 (inclusive).
Bytedance
AS396986
or else
ip4:
71.18.17.32 / 28
pass
if the sender's IP is between
71.18.17.32 and 71.18.17.47 (inclusive).
71.18.17.32 and 71.18.17.47 (inclusive).
Bytedance
AS396986
or else
ip4:
71.18.17.48 / 31
pass
if the sender's IP is between
71.18.17.48 and 71.18.17.49 (inclusive).
71.18.17.48 and 71.18.17.49 (inclusive).
Bytedance
AS396986
or else
ip4:
71.18.18.0 / 29
pass
if the sender's IP is between
71.18.18.0 and 71.18.18.7 (inclusive).
71.18.18.0 and 71.18.18.7 (inclusive).
Bytedance
AS396986
or else
ip4:
71.18.18.8 / 31
pass
if the sender's IP is between
71.18.18.8 and 71.18.18.9 (inclusive).
71.18.18.8 and 71.18.18.9 (inclusive).
Bytedance
AS396986
or else
ip4:
71.18.19.0 / 29
pass
if the sender's IP is between
71.18.19.0 and 71.18.19.7 (inclusive).
71.18.19.0 and 71.18.19.7 (inclusive).
Bytedance
AS396986
or else
ip4:
71.18.19.8 / 31
pass
if the sender's IP is between
71.18.19.8 and 71.18.19.9 (inclusive).
71.18.19.8 and 71.18.19.9 (inclusive).
Bytedance
AS396986
or else
~all
soft fail
the email's SPF check.
Included records
v=spf1 ip4:71.18.16.0/28 ip4:71.18.16.16/30 ip4:71.18.17.0/27 ip4:71.18.17.32/28 ip4:71.18.17.48/31 ip4:71.18.18.0/29 ip4:71.18.18.8/31 ip4:71.18.19.0/29 ip4:71.18.19.8/31 ~all