Unity Connection will not relay a message when the relay address matches a user's SMTP proxy address, to avoid delivery loops. Cisco recommends using the precise address of the destination mailbox (for example alias@mailserver) as the relay address.
Checked 2026-10-02
- Vendor
- Cisco
- Product
- Unity Connection
- Subsystem
- message relay
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Release 15
- Checked
- 2026-10-02
Sources
- Troubleshooting Guide for Cisco Unity Connection Release 15 - Troubleshooting Messages — Cisco Systems · tier 2 current vendor documentation · Troubleshooting Messages > Unity Connection Unable to Relay Messages
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting Unity Connection voicemail-to-email and notifications: source note unity-connection-notification-troubleshooting-relay-loop. WarmTransfer. https://warmtransfer.net/knowledge/claims/unity-connection-notification-troubleshooting-relay-loop
BibTeX
@misc{warmtransfer-claim-unity-connection-notification-troubleshooting-relay-loop,
title = {Troubleshooting Unity Connection voicemail-to-email and notifications: source note unity-connection-notification-troubleshooting-relay-loop},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/unity-connection-notification-troubleshooting-relay-loop},
note = {Source note unity-connection-notification-troubleshooting-relay-loop, checked 2026-10-02}
}