Long emails Sent to Inreach

What happens when a long email (>160 characters is sent to an InReach device?
Does it truncate the message at 160 characters or split it up into multiple messages or something entirely different?
  • You can't send an e-mail directly to the inReach. Everything is SMS messages. In every circumstance I've seen, longer messages are broken up into segments and send as multiple messages. I believe your plan will be charged for each segment, but am not sure of that. Nor am I at all sure that this segmentation applies in every circumstance.