Lookup tree for spfb._spf.cisco.com

v=spf1 ip4:64.104.15.96/27 ip4:64.104.3.128/25 ip4:173.36.137.128/26 ip4:64.102.19.192/26 ip4:173.36.136.0/24 ip4:184.94.240.0/20 ip4:68.232.129.181 ip4:68.232.135.80 ip4:208.90.56.0/21 include:spfc._spf.cisco.com ~all

• include: spfc._spf.cisco.com (lookup #1)

  v=spf1 ip4:64.101.210.224/28 ip4:173.37.227.240/28 ip4:173.37.135.112/28 mx:res.cisco.com mx:sco.cisco.com ~all

  • mx:res.cisco.com (lookup #2)

    < supports up to 10 MX hostnames >
  • mx:sco.cisco.com (lookup #3)

    < supports up to 10 MX hostnames >