Mail Delivery Fails with "unknown host or domain"
(Doc ID 1905659.1)
Last updated on JANUARY 31, 2024
Applies to:
Oracle Communications Messaging Server - Version 5.2.0 and laterInformation in this document applies to any platform.
Purpose
How to debug configuration problems when the MTA is rejecting mail with an error message like:
Note: the <domain> part may very well be a valid domain, which adds to the confusion of why is it saying "unknown host or domain"?
Troubleshooting Steps
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In this Document
Purpose |
Troubleshooting Steps |
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