require ["relational", "comparator-i;ascii-numeric", "fileinto"];

if header :value "lt" :comparator "i;ascii-numeric"
        ["x-priority"] ["3"]
{
    fileinto "Priority";
}

elsif address :count "gt" :comparator "i;ascii-numeric"
            ["to"] ["5"]
{
    # everything with more than 5 recipients in the "to" field
    # is considered SPAM
    fileinto "SPAM";
}

elsif address :value "gt" :all :comparator "i;ascii-casemap"
            ["from"] ["M"]
{
    fileinto "From N-Z";
} else {
    fileinto "From A-M";
}

if allof ( address :count "eq" :comparator "i;ascii-numeric"
                    ["to", "cc"] ["1"] ,
            address :all :comparator "i;ascii-casemap"
                    ["to", "cc"] ["me@foo.example.com"] )
{
    fileinto "Only me";
}