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![]() Used for fetching Kerberos authentication tokens when KCD authentication is enabled. ![]() SEG fetches the configuration and policy data from Workspace ONE. SEG connects to Email server's listener port, usually 443, to serve email traffic Used for Diagnostic and Administrative functionalities. ![]() When 443 or any other port is configured, Unified Access Gateway will internally route the SEG traffic to 11443.Įmail Notification Service (when enabled) Secure Email Gateway listens on port 11443. Port Requirements for the Secure Email Gateway Port DNS requests are made on UDP port 53 and so it is important that an external firewall does not block these requests or replies. The DNS server IP addresses are configurable. Unified Access Gateway services use DNS to resolve hostnames. Note: All UDP ports require forward datagrams and reply datagrams to be allowed.
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