Troubleshooting Guide for Cisco Unity Connection Release 15 - Troubleshooting Messages

Publisher

Cisco Systems

URL

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/connection/15/troubleshooting/guide/b_15cuctsg/b_15cuctsg_chapter_0101.html

Published

2025-08-22

Updated

unknown

Accessed

2026-10-02

HTTP status

200

License

Cisco documentation; all rights reserved; no-redistribution; short excerpts and locators only

Source notes citing this source

• A malformed message goes into the MTA bad mail folder (UmssMtaBadMail) rather than to the Undeliverable Messages list. Unity Connection checks that folder nightly and logs an error when it finds messages there. in context
• 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. in context
• If Unity Connection cannot relay a message to the correct address, Cisco says to make sure the smart host entered on the server is correct and reachable and to review the message relay logs. in context

Cite this source record

APA

WarmTransfer. (2025, August 22). Troubleshooting Guide for Cisco Unity Connection Release 15 - Troubleshooting Messages. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-cuc15-tsg-messages

BibTeX

@misc{warmtransfer-cisco-cuc15-tsg-messages,
  title  = {Troubleshooting Guide for Cisco Unity Connection Release 15 - Troubleshooting Messages},
  author = {{WarmTransfer}},
  year   = {2025},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-cuc15-tsg-messages},
  note   = {Cisco Systems, accessed 2026-10-02}
}