Port 465

Port 465 is commonly used for Secure SMTP (SMTPS), which is a variant of the Simple Mail Transfer Protocol (SMTP) that encrypts the connection using SSL/TLS. It is used for sending and receiving email messages securely.

Ports those registered with IANA are shown as official ports. The same port number may be unofficialy used by various services or applications. The official usage are listed separately below its usage may change from time to time.

Official

Port
Protocol (TCP/UDP)
Title
Description
Port Type
Port 465
udp
igmpv3lite
IGMP over UDP SSM
WELL KNOWN PORT
Port 465
tcp
urd
URL Rendesvous Directory SSM
WELL KNOWN PORT

UnOfficial

Unofficialy or sometimes with conflict, the same port may be used by different applications.

Port Protocol (TCP/UDP) Description
Port 465 Cisco protocol
Port 465 SMTP over SSL
TCP UDP Ports
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