try {
    // Pickup parameters
    params = JSON.parse(value),
        req = new CurlHttpRequest(),
        fields = {},
        resp = '',
        result = { tags: {} };

    // Set HTTP proxy if required
    if (typeof params.HTTPProxy === 'string' && params.HTTPProxy.trim() !== '') { req.setProxy(params.HTTPProxy); }

    // Declare output type
    req.AddHeader('Content-Type: application/json');

    // Must have fields
    fields.itemId = params.itemId;
    fields.triggerId = params.triggerId;
    fields.eventId = params.eventId;
    fields.eventValue = params.eventValue;
    fields.recipient = params.recipient;
    fields.baseURL = params.baseURL;
    fields.duration = params.duration;

    // Optional fields
    if (typeof params.graphWidth === 'string') { fields.graphWidth = params.graphWidth; }
    if (typeof params.graphHeight === 'string') { fields.graphHeight = params.graphHeight; }
    if (typeof params.subject === 'string') { fields.subject = params.subject; }
    if (typeof params.showLegend === 'string') { fields.showLegend = params.showLegend; }

    // Add generic fields
    Object.keys(params).forEach(function(key) {
        if (key.substring(0, 4) == 'info') {
            fields[key] = params[key];
        }
    });

    // Post information to the processing script
    Zabbix.Log(4, '[MailGraph Webhook] Sending request: ' + params.URL + '?' + JSON.stringify(fields));
    var resp = req.Post(params.URL,JSON.stringify(fields));
    Zabbix.Log(4, '[Mailgraph Webhook] Receiving response:' + resp);

    // If there was an error, report it
    if (req.Status() != 200) { throw JSON.parse(resp).errors[0]; }

    // We expect the message id back from the processing script
    resp = JSON.parse(resp);
    result.tags.__message_id = resp.messageId;

    // Pass the result back to Zabbix
    return JSON.stringify(result);
}
catch (error)
{
    // In case something went wrong in the processing, pass the error back to Zabbix
    Zabbix.Log(127, 'MailGraph notification failed : '+error);
    throw 'MailGraph notification failed : '+error;
}