Expand SPF check in policydspf 1.2 plugin

    Be able to configure PolicydSPF to reject any SPF check failure.

    Now enter evaluation "none" as correct email, and this is taken advantage of by many spam submissions

    eceived-SPF: none (aza.com: No applicable sender policy available)

    thanks


    And happy holidays to all of you


    i-MSCP 1.53 (last version)

    MariaDb 10.2