4 / 10
Lookups
1
Issue
3
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 mx ptr a:dc-de.skyline-bw.com ip4:93.240.37.153 ~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.
or else
PTR checks should no longer be used. See
RFC 7208, section 5.5
.
or else
pass
if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
or else
ip4:
93.240.37.153 / 32
pass
if the sender's IP is between
93.240.37.153 and 93.240.37.153 (inclusive).
93.240.37.153 and 93.240.37.153 (inclusive).
Deutsche Telekom
AS3320
or else
~all
soft fail
the email's SPF check.
Included records
v=spf1 a mx ptr a:dc-de.skyline-bw.com ip4:93.240.37.153 ~all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable