5 / 10
Lookups
1
Issue
16,349
IPv4 addresses
1.58 â‹… 10
29
IPv6 addresses
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable.
v=spf1 include:_spf.nameserver.sk ip4:78.41.19.9 ip4:80.79.25.123 ip4:85.118.134.138 ip4:78.41.19.80 ip4:78.41.19.81 ip4:78.41.19.85 ip4:78.41.19.82 ip4:78.41.19.73 ip4:62.109.137.238 ip4:78.41.19.19 a mx ptr ~all
Copied
Terms
include:
_spf.nameserver.sk
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
ip4:
78.41.19.9 / 32
pass
if the sender's IP is between
78.41.19.9 and 78.41.19.9 (inclusive).
78.41.19.9 and 78.41.19.9 (inclusive).
NEW TELEKOM, spol. s r.o.
AS43413
or else
ip4:
80.79.25.123 / 32
pass
if the sender's IP is between
80.79.25.123 and 80.79.25.123 (inclusive).
80.79.25.123 and 80.79.25.123 (inclusive).
MasterDC s.r.o.
AS24971
or else
ip4:
85.118.134.138 / 32
pass
if the sender's IP is between
85.118.134.138 and 85.118.134.138 (inclusive).
85.118.134.138 and 85.118.134.138 (inclusive).
MasterDC s.r.o.
AS24971
or else
ip4:
78.41.19.80 / 32
pass
if the sender's IP is between
78.41.19.80 and 78.41.19.80 (inclusive).
78.41.19.80 and 78.41.19.80 (inclusive).
NEW TELEKOM, spol. s r.o.
AS43413
or else
ip4:
78.41.19.81 / 32
pass
if the sender's IP is between
78.41.19.81 and 78.41.19.81 (inclusive).
78.41.19.81 and 78.41.19.81 (inclusive).
NEW TELEKOM, spol. s r.o.
AS43413
or else
ip4:
78.41.19.85 / 32
pass
if the sender's IP is between
78.41.19.85 and 78.41.19.85 (inclusive).
78.41.19.85 and 78.41.19.85 (inclusive).
NEW TELEKOM, spol. s r.o.
AS43413
or else
ip4:
78.41.19.82 / 32
pass
if the sender's IP is between
78.41.19.82 and 78.41.19.82 (inclusive).
78.41.19.82 and 78.41.19.82 (inclusive).
NEW TELEKOM, spol. s r.o.
AS43413
or else
ip4:
78.41.19.73 / 32
pass
if the sender's IP is between
78.41.19.73 and 78.41.19.73 (inclusive).
78.41.19.73 and 78.41.19.73 (inclusive).
NEW TELEKOM, spol. s r.o.
AS43413
or else
ip4:
62.109.137.238 / 32
pass
if the sender's IP is between
62.109.137.238 and 62.109.137.238 (inclusive).
62.109.137.238 and 62.109.137.238 (inclusive).
Webglobe, s.r.o.
AS29134
or else
ip4:
78.41.19.19 / 32
pass
if the sender's IP is between
78.41.19.19 and 78.41.19.19 (inclusive).
78.41.19.19 and 78.41.19.19 (inclusive).
NEW TELEKOM, spol. s r.o.
AS43413
or else
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 checks should no longer be used. See
RFC 7208, section 5.5
.
or else
~all
soft fail
the email's SPF check.
Included records
v=spf1 include:_spf.nameserver.sk ip4:78.41.19.9 ip4:80.79.25.123 ip4:85.118.134.138 ip4:78.41.19.80 ip4:78.41.19.81 ip4:78.41.19.85 ip4:78.41.19.82 ip4:78.41.19.73 ip4:62.109.137.238 ip4:78.41.19.19 a mx ptr ~all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable
12 x ip4 3 x ip6 include:smtpx.stable.cz -all
25 x ip4 4 x ip6 ~all
IP ranges
2a00:1e40:cafe:244::
/ 64
Webglobe, s.r.o.
AS29134
2a00:1e40:cafe:244::
2a00:1e40:cafe:244:ffff:ffff:ffff:ffff
92.240.246.128
/ 25
LightStorm Services s.r.o.
AS42005
92.240.246.128 - 92.240.246.255
128 IP addresses
2001:1ba0:2a0:5965::
/ 64
SWAN, a.s.
AS5578
2001:1ba0:2a0:5965::
2001:1ba0:2a0:5965:ffff:ffff:ffff:ffff
2a00:1e40:cafe:244::
/ 64
Webglobe, s.r.o.
AS29134
2a00:1e40:cafe:244::
2a00:1e40:cafe:244:ffff:ffff:ffff:ffff