Learn how the SMS fallback is handled for failed iMessage send requests
The iMessage route supports graceful fallback for several failure scenarios.
Possible reasons an outbound iMessage send may fail:
The subscriber is not capable of receiving iMessages
The subscriber has not opted-in via inbound message to the selected Sender Identity
The Sender Identity has been disabled, blocked, or banned
Our iMessage route is temporarily unavailable
If any of these failures occur, Mobile Text Alerts will fall back to SMS to deliver your message. This helps ensure your subscriber receives your message, even if there's an issue delivering via iMessage.