Firewall issue with Aliases / Ranges

  • Hi

    I have a firewall rule which allows incomming mail from specific domains only.

    The easy way I've added all relevant ip addresses,
    first I tried adding a range CIDR 24 which should be all ip addresses from 1 to 255

    However when I do specify individual addresses it works fine, otherwise these ip's are blocked as show in the 3 images,

    Alias is an overview of all ip's in the range.

    Disallow is specified in /24 range but not specifically
    Allow is specified specifically

    Is this a bug or am I doing something by specifying the /24 range ?


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