マクロの例（宛先が社外なら確認メッセージを表示する例）

    loaddll "tkinfo.dll";
    $to = dllfuncstr("CurrentHeaderUnited", "To");
    $cc = dllfuncstr("CurrentHeaderUnited", "Cc");
    $bcc = dllfuncstr("CurrentHeaderUnited", "Bcc");
    $dest = $to + "," + $cc + "," + $bcc;
    #destCount = dllfunc("CountEmailList", $dest );
    #i = 0;
    #found = 0;
    while( #i < #destCount ) {
        $email = dllfuncstr("GetEmailList", $dest, #i);
        $email = dllfuncstr("SetEmailOnly", $email);
        $email = dllfuncstr("ToLower", $email);
        if( $email != "" ) {
            if( rightstr( $email, 14 ) != "@mycompany.com" ) {
                #found = 1;
                break;
            }
        }
        #i = #i + 1;
    }
    if( #found ) {
        #n = dllfunc("Bypass_MessageBox", hidemaruhandle(0)
                , "社外にメールを送ろうとしています。よろしいですか？"
                , "社外メールの確認"
                , 0x30 + 3 + 0x100);
        if( #n != 6 ) {
            #n = dllfunc("SetCancel", 1);
        }
    }