2 alien.demo.com. 1 "All your base are belong to us!" 2 mail.demo.com. Head of the chain 1 "v=DKIM1;t=s;p= MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA77VDAIfyhjtoF0DIE5V7" 2 mail2.demo.com. Second chunk of the chain 1 "rev1EKk4L0nxdBpD5O/jPrM4KP0kukeuB6IMpVplkkq52MSDeRcjoO50h0DmwZOr" 2 2 mail3.demo.com. Last chunk of the chain 2 "UI6K6PaW2WvtbJG2v+gHLY5M4tB0+/FNJU9emZfkPOk3DmRhZ8ENi7+oZa2ivUDj OQIDAQAB" 3