:674
(TCP)
Low Risk
ACAP
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TCP — Email
Port Overview
Port Number
674
Service Name
ACAP
Transport Protocol
TCP
Category
Email
Security Risk
Low
Port Range
Well-Known (0-1023)
What is Port 674?
Application Configuration Access Protocol (ACAP), defined in RFC 2244, designed for server-side storage of email client configurations. Never achieved widespread adoption.
TCP
Email
Security Considerations
Port 674 (ACAP) is classified as low risk. This service uses encryption or has a minimal attack surface, making it relatively safe to expose.
Recommendation: Standard security practices apply. Keep software updated and monitor access.