michael.treshna.com SPF record

10 / 10 Lookups
2 Issues
21,109 IPv4 addresses
0 IPv6 addresses

There are 2 issues with this SPF record

  • The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable.
  • The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable.
v=spf1 ip4:203.97.48.0/24 ip4:210.48.82.0/24 ip4:202.174.114.0/24 ip4:210.48.71.0/24 ip4:202.78.158.254/32 ip4:104.237.140.243/32 ip4:116.90.140.0/24 ip4:139.162.10.131/32 ip4:50.116.26.96/32 a mx ptr include:spf.smtp2go.com include:gymmasteronline.com i nclude:spf.braintreegateway.com -all Copied

Terms

ip4:
203.97.48.0 / 24
pass if the sender's IP is between
203.97.48.0 and 203.97.48.255 (inclusive).
One New Zealand Group
AS4768
or else
ip4:
210.48.82.0 / 24
pass if the sender's IP is between
210.48.82.0 and 210.48.82.255 (inclusive).
ICONZ
AS4770
or else
ip4:
202.174.114.0 / 24
pass if the sender's IP is between
202.174.114.0 and 202.174.114.255 (inclusive).
Solarix Networks
AS24192
or else
ip4:
210.48.71.0 / 24
pass if the sender's IP is between
210.48.71.0 and 210.48.71.255 (inclusive).
ICONZ
AS4770
or else
ip4:
202.78.158.254 / 32
pass if the sender's IP is between
202.78.158.254 and 202.78.158.254 (inclusive).
One New Zealand Group
AS4768
or else
ip4:
104.237.140.243 / 32
pass if the sender's IP is between
104.237.140.243 and 104.237.140.243 (inclusive).
Akamai Connected Cloud
AS63949
or else
ip4:
116.90.140.0 / 24
pass if the sender's IP is between
116.90.140.0 and 116.90.140.255 (inclusive).
Solarix Networks
AS38477
or else
ip4:
139.162.10.131 / 32
pass if the sender's IP is between
139.162.10.131 and 139.162.10.131 (inclusive).
Akamai Connected Cloud
AS63949
or else
ip4:
50.116.26.96 / 32
pass if the sender's IP is between
50.116.26.96 and 50.116.26.96 (inclusive).
Akamai Connected Cloud
AS63949
or else
a
pass if the sender's IP address is in the A or AAAA record of this domain.
or else
mx
pass if the sender's IP address is in the A or AAAA record of this domain.
or else
ptr:
PTR checks should no longer be used. See RFC 7208, section 5.5 .
or else
Evaluate this SPF record and pass if it
passes.
or else
Evaluate this SPF record and pass if it
passes.
or else
Evaluate this SPF record and pass if it
passes.
or else
-all
fail the email's SPF check.

Included records

v=spf1 ip4:203.97.48.0/24 ip4:210.48.82.0/24 ip4:202.174.114.0/24 ip4:210.48.71.0/24 ip4:202.78.158.254 ip4:104.237.140.243 ip4:116.90.140.0/24 ip4:139.162.10.131 ip4:50.116.26.96 a mx ptr include:spf.smtp2go.com include:gymmasteronline.com include:spf.braintreegateway.com -all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable
10 x ip4 ~all
include:spf.smtp2go.com mx a ptr 10 x ip4 -all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable
10 x ip4 ~all

IP ranges

One New Zealand Group
AS4768
ICONZ
AS4770
Solarix Networks
AS24192
ICONZ
AS4770
One New Zealand Group
AS4768
Akamai Connected Cloud
AS63949
Solarix Networks
AS38477
Akamai Connected Cloud
AS63949
Akamai Connected Cloud
AS63949
Leaseweb USA
AS30633
Leaseweb USA
AS30633
Arelion Sweden AB
AS1299
Arelion Sweden AB
AS1299
DEFT.COM
AS23352
DEFT.COM
AS23352
Wholesale Services Provider
AS45671
DEFT.COM
AS23352
Wholesale Services Provider
AS45671
Akamai Connected Cloud
AS63949
Leaseweb USA
AS30633
Leaseweb USA
AS30633
Arelion Sweden AB
AS1299
Arelion Sweden AB
AS1299
DEFT.COM
AS23352
DEFT.COM
AS23352
Wholesale Services Provider
AS45671
DEFT.COM
AS23352
Wholesale Services Provider
AS45671
Akamai Connected Cloud
AS63949
Voyager Internet
AS56030
Akamai Connected Cloud
AS63949
ICONZ
AS4770
Solarix Networks
AS38477
Akamai Connected Cloud
AS63949
Akamai Connected Cloud
AS63949
One New Zealand Group
AS4768
Akamai Connected Cloud
AS63949
Akamai Connected Cloud
AS63949
Solarix Networks
AS38477
Akamai Connected Cloud
AS63949
Akamai Connected Cloud
AS63949
CenturyLink Communications
AS209
Hurricane Electric
AS6939
CenturyLink Communications
AS3561
Verizon Business
AS2828