Unity Connection sends a non-delivery receipt to the sender when it cannot relay a message because the message is marked private or secure. Relaying such messages requires the separate checkboxes under System Settings > Advanced > Messaging.
Checked 2026-10-02
Unity Connection sends an NDR to the message sender when it receives a message that it cannot relay because the message is marked private or secure.
- Vendor
- Cisco
- Product
- Unity Connection
- Subsystem
- message relay
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Release 15
- Checked
- 2026-10-02
Sources
- System Administration Guide for Cisco Unity Connection Release 15 - Messaging — Cisco Systems · tier 2 current vendor documentation · Messaging > Relaying Messages to Smart Host (Note on private/secure messages)
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting Unity Connection voicemail-to-email and notifications: source note unity-connection-notification-troubleshooting-relay-private. WarmTransfer. https://warmtransfer.net/knowledge/claims/unity-connection-notification-troubleshooting-relay-private
BibTeX
@misc{warmtransfer-claim-unity-connection-notification-troubleshooting-relay-private,
title = {Troubleshooting Unity Connection voicemail-to-email and notifications: source note unity-connection-notification-troubleshooting-relay-private},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/unity-connection-notification-troubleshooting-relay-private},
note = {Source note unity-connection-notification-troubleshooting-relay-private, checked 2026-10-02}
}