[Forums] SendGrid WebHook REST API Problem

 {

    "sg_message_id":"sendgrid_internal_message_id",

    "email": "john.doe@sendgrid.com",

    "timestamp": 1337197600,

    "smtp-id": "<4FB4041F.6080505@sendgrid.com>",

    "event": "delivered"

 }
 

My problem is that when attempting to build a structure that maps to that JSON format, the system will not let me create an attribute with the name "smtp-id" because dashes are not allowed in names.  That results in the system ignoring that name/value pair which is a big problem because that is the most important piece of information I need to map the SendGrid data to the internal eMail logging within Outsystems.

Has anyone run across this problem and if so do you have a solution?  Or am is missing something really basic here?  NOTE: I am running platform 9 and therefore the ardoJSON package is not compatible. 

Any input would be appreciated.

Thanks,
Steve