zetta.io SPF record

5 / 10 Lookups
1 Issue
392 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 a ptr ip4:185.56.186.32/32 include:spf.zetta.io include:_spf.smtp.nexthop.no ip4:91.218.187.128/25 -all Copied

Terms

mx
pass if the sender's IP address is in the A or AAAA record of this domain.
3 IPv4 addresses
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
ptr:
PTR checks should no longer be used. See RFC 7208, section 5.5 .
or else
ip4:
185.56.186.32 / 32
pass if the sender's IP is between
185.56.186.32 and 185.56.186.32 (inclusive).
Nexthop AS
AS60130
or else
include:
spf.zetta.io
Evaluate this SPF record and pass if it
passes.
or else
include:
_spf.smtp.nexthop.no
Evaluate this SPF record and pass if it
passes.
or else
ip4:
91.218.187.128 / 25
pass if the sender's IP is between
91.218.187.128 and 91.218.187.255 (inclusive).
Nexthop AS
AS49788
or else
-all
fail the email's SPF check.

Included records

v=spf1 mx a ptr ip4:185.56.186.32 include:spf.zetta.io include:_spf.smtp.nexthop.no ip4:91.218.187.128/25 -all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable
1 x ip4 ~all
3 x ip4 ~all

IP ranges

91.90.111.229
Nexthop AS
AS49788
91.90.111.227
Nexthop AS
AS49788
91.90.111.228
Nexthop AS
AS49788
185.56.186.91
Nexthop AS
AS60130
185.56.186.32
Nexthop AS
AS60130
185.56.184.0 / 24
Nexthop AS
AS60130
91.90.110.213
Nexthop AS
AS49788
91.189.120.193
Nexthop AS
AS49788
91.225.60.9
Nexthop AS
AS49788
91.218.187.128 / 25
Nexthop AS
AS49788