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Unknown Host Or Domain When Sending Outbound Emails To Any Email Address Under a Specific Top Level Domain (Doc ID 1622031.1)

Last updated on NOVEMBER 17, 2023

Applies to:

Oracle Communications Messaging Server - Version 5.2.0 to 8.0.0 [Release 5.2 to 8.0.0]
Information in this document applies to any platform.


Why are users unable to send outbound mail to the top level domain (TLD) of .CW (Curacao)?

We are getting errors in the mail.log log file containing the following - 550 5.1.2 unknown host or domain...


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