SPF Record Checker

Please enter a host name to check.

Example host names with SPF records:
ipswitch.com, microsoft.com, google.com, gmail.com, apple.com, postini.com, ebay.com, orange.ch, bitcointalk.org, thecannells.org, facebook.com, shaw.ca, ubs.com, kitterman.com

SPF checker created by an author of the SPF RFC4408.
http://www.kitterman.com/spf/validate.html

 

The following nameservers for the host name bitcointalk.org were found.
brad.ns.cloudflare.com
amy.ns.cloudflare.com

The following rules for the host name bitcointalk.org were found. A total of 2 queries (as defined by RFC4408) were performed for fetching SPF and related records.
The DNS lookups for SPF took 5717msec.
  1. Allow all from the ip 52.45.214.107
  2. Inlcude 25 allow rules from host spf.messagingengine.com.
    1. Allow all from the ip 66.111.4.25
    2. Allow all from the ip 66.111.4.26
    3. Allow all from the ip 66.111.4.27
    4. Allow all from the ip 66.111.4.28
    5. Allow all from the ip 66.111.4.29
    6. Allow all from the ip 66.111.4.221
    7. Allow all from the ip 66.111.4.222
    8. Allow all from the ip 66.111.4.224
    9. Allow all from the ip 66.111.4.225
    10. Allow all from the ip 66.111.4.229
    11. Allow all from the ip 66.111.4.230
    12. Allow all from the ip 64.147.123.17
    13. Allow all from the ip 64.147.123.18
    14. Allow all from the ip 64.147.123.19
    15. Allow all from the ip 64.147.123.20
    16. Allow all from the ip 64.147.123.21
    17. Allow all from the ip 64.147.123.24
    18. Allow all from the ip 64.147.123.25
    19. Allow all from the ip 64.147.123.26
    20. Allow all from the ip 64.147.123.27
    21. Allow all from the ip 64.147.123.28
    22. Allow all from the ip 64.147.123.29
    23. Allow all from the range 103.168.172.128/27 (103.168.172.128 - 103.168.172.159)
    24. Allow all from the range 64.147.123.128/27 (64.147.123.128 - 64.147.123.159)
    25. Deny all IPs which do not match any previous rule
  3. Inlcude 12 allow rules from host amazonses.com.
    1. Allow all from the range 199.255.192.0/22 (199.255.192.0 - 199.255.195.255)
    2. Allow all from the range 199.127.232.0/22 (199.127.232.0 - 199.127.235.255)
    3. Allow all from the range 54.240.0.0/18 (54.240.0.0 - 54.240.63.255)
    4. Allow all from the range 69.169.224.0/20 (69.169.224.0 - 69.169.239.255)
    5. Allow all from the range 23.249.208.0/20 (23.249.208.0 - 23.249.223.255)
    6. Allow all from the range 23.251.224.0/19 (23.251.224.0 - 23.251.255.255)
    7. Allow all from the range 76.223.176.0/20 (76.223.176.0 - 76.223.191.255)
    8. Allow all from the range 52.82.172.0/22 (52.82.172.0 - 52.82.175.255)
    9. Allow all from the range 54.240.64.0/19 (54.240.64.0 - 54.240.95.255)
    10. Allow all from the range 54.240.96.0/19 (54.240.96.0 - 54.240.127.255)
    11. Allow all from the range 76.223.128.0/19 (76.223.128.0 - 76.223.159.255)
    12. Deny all IPs which do not match any previous rule
  4. Deny all IPs which do not match any previous rule