A delivery receipt was requested by the sender of the message so GMS has sent it.
In this case session Undefined was processing a message from a server/client at Undefined from Undefined to Undefined. The delivery receipt was sent to Undefined.
This is the correct result, no action is required by you.
You may choose to turn of the sending of delivery receipts within GMS.
- What is DSN?
- How do alerts work?
- What does “receipt” mean in the SMTP log files?
- What are the benefits of Enhanced SMTP?
Keywords:delivery receipt 8264