Known Issue: Certificate - Hostname Does Not Match
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In the Presence Engine logs, you see this message:
SESSION_HOTNAME_DOES_NOTMATCH_CERTIFICATE_HOSTNAME - rejected
What Caused it?
Typically, this failure happens if the name that you configured in the Presence Gateway field in Cisco Unified Presence Administration ("Session_Hostanms") does not match the name in the Exchange certificate ("Certificate_Hostname")
What Can You Do?
Go to Cisco Unified Presence Administration, and select Presence > Gateway. Enter the correct name (exactly matching the name in thte certificate) in the Presence Gateway field.