1. Please visit your Message Log on SMS.to
2. Please use the above filters to find the message(s) in question and use the spy glass button to start the search
   
3. Please note the message ID as the first column of the results
   
4. Download the current view via the Export button or copy & paste the message ID to a location of your choice, e.g. as described in the article: My messages are not delivered & how to escalate to SMS.to support