UDP Port 993 – IMAPS (IMAP over TLS)

About UDP Port 993

Port 993 is registered with the Internet Assigned Numbers Authority (IANA) for . The IANA description reads: ‘Reserved’. This port does not currently appear in the IDS rulesets or malware activity indicators in our data sources.

Data Sources

This information is compiled from: IANA Service Name and Transport Protocol Port Number Registry, Emerging Threats Open Ruleset (BSD 2-Clause / GPLv2 per SID range), and Snort Community Rules (GPLv2).