4 / 10
Lookups
1
Issue
27
IPv4 addresses
0
IPv6 addresses
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable.
Terms
a
pass
if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
or else
mx
pass
if the sender's IP address is in the A or AAAA record of this domain.
6 IPv4 addresses
or else
PTR checks should no longer be used. See
RFC 7208, section 5.5
.
or else
include:
spfhost.messageprovider.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
fail
the email's SPF check.
Included records
v=spf1 a mx ptr include:spfhost.messageprovider.com -all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable
14 x ip4 -all
IP ranges
156.55.203.218
/ 31
Fidelity National Information Services
AS18434
156.55.203.218 - 156.55.203.219
2 IP addresses
156.55.193.212
/ 30
Fidelity National Information Services
AS18434
156.55.193.212 - 156.55.193.215
4 IP addresses
147.249.4.126
/ 31
Fidelity National Information Services
AS18434
147.249.4.126 - 147.249.4.127
2 IP addresses
147.249.4.128
/ 31
Fidelity National Information Services
AS18434
147.249.4.128 - 147.249.4.129
2 IP addresses