Signal & Syntax · Messaging and A2P
What Is an SMS Delivery Receipt?
A delivery receipt (DLR) is the status report an operator returns for each SMS. Common DLR states are DELIVRD, UNDELIV, EXPIRED and REJECTD.A delivery receipt (DLR) is the status report an operator returns for each SMS. Common DLR states are DELIVRD, UNDELIV, EXPIRED and REJECTD.A delivery receipt (DLR) is the status report an operator returns for each SMS. Common DLR states are DELIVRD, UNDELIV, EXPIRED and REJECTD.
Also calledDLR · delivery report
Example
stat:DELIVRD err:000
Delivery Receipt in Practice
The receipt travels back from the The receipt travels back from the The receipt travels back from the SMSCSMSC over over over SMPPSMPP or the gateway's webhook. A DELIVRD state confirms the handset received the message. UNDELIV and EXPIRED arrive after submission, so providers billing on submission charge for them. A route that returns no receipt leaves the send unconfirmed. or the gateway's webhook. A DELIVRD state confirms the handset received the message. UNDELIV and EXPIRED arrive after submission, so providers billing on submission charge for them. A route that returns no receipt leaves the send unconfirmed. or the gateway's webhook. A DELIVRD state confirms the handset received the message. UNDELIV and EXPIRED arrive after submission, so providers billing on submission charge for them. A route that returns no receipt leaves the send unconfirmed.
Where ScoreMachine Fits
Related Terms
Read the Guide
Guide
How A2P SMS Reaches a Handset
The path from an API call to a delivery receipt. Read the guide →Run the Checks on Your Own List
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