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1
Issue
2,304
IPv4 addresses
0
IPv6 addresses
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable.
v=spf1 mx ptr ip4:185.29.16.0/22 ip4:45.157.4.0/22 ip4:193.242.154.0/24
Copied
Terms
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
ip4:
185.29.16.0 / 22
pass
if the sender's IP is between
185.29.16.0 and 185.29.19.255 (inclusive).
185.29.16.0 and 185.29.19.255 (inclusive).
Humanfrog d.o.o.
AS60435
or else
ip4:
45.157.4.0 / 22
pass
if the sender's IP is between
45.157.4.0 and 45.157.7.255 (inclusive).
45.157.4.0 and 45.157.7.255 (inclusive).
Humanfrog d.o.o.
AS60435
or else
ip4:
193.242.154.0 / 24
pass
if the sender's IP is between
193.242.154.0 and 193.242.154.255 (inclusive).
193.242.154.0 and 193.242.154.255 (inclusive).
Humanfrog d.o.o.
AS60435
Included records
v=spf1 mx ptr ip4:185.29.16.0/22 ip4:45.157.4.0/22 ip4:193.242.154.0/24
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable