3 / 10
Lookups
1
Issue
5
IPv4 addresses
0
IPv6 addresses
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable.
v=spf1 a/24 mx/24 ptr ip4:194.169.228.21 ip4:194.169.228.24 ip4:194.169.228.25 -all
Copied
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.
1 IPv4 address
or else
ptr:
.
PTR checks should no longer be used. See
RFC 7208, section 5.5
.
or else
ip4:
194.169.228.21 / 32
pass
if the sender's IP is between
194.169.228.21 and 194.169.228.21 (inclusive).
194.169.228.21 and 194.169.228.21 (inclusive).
PTU WLAN-TECH PLUS JACEK SOLTYS
AS49715
or else
ip4:
194.169.228.24 / 32
pass
if the sender's IP is between
194.169.228.24 and 194.169.228.24 (inclusive).
194.169.228.24 and 194.169.228.24 (inclusive).
PTU WLAN-TECH PLUS JACEK SOLTYS
AS49715
or else
ip4:
194.169.228.25 / 32
pass
if the sender's IP is between
194.169.228.25 and 194.169.228.25 (inclusive).
194.169.228.25 and 194.169.228.25 (inclusive).
PTU WLAN-TECH PLUS JACEK SOLTYS
AS49715
or else
-all
fail
the email's SPF check.
Included records
v=spf1 a/24 mx/24 ptr ip4:194.169.228.21 ip4:194.169.228.24 ip4:194.169.228.25 -all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable