POP3 Service Configuration

Address and Port

  • Name: INBUCKET_POP3_ADDR
  • Default: 0.0.0.0:1100

The IPv4 address and TCP port number the POP3 server should listen on, separated by a colon. Some operating systems may prevent Inbucket from listening on port 110 without escalated privileges. Using an IP address of 0.0.0.0 will cause Inbucket to listen on all available network interfaces.

Greeting Domain

  • Name: INBUCKET_POP3_DOMAIN
  • Default: inbucket

The domain used in the POP3 greeting:

+OK Inbucket POP3 server ready <26641.1522000423@domain>

Most POP3 clients appear to ignore this value.

Network Idle Timeout

  • Name: INBUCKET_POP3_TIMEOUT
  • Default: 600s
  • Values: Duration ending in s for seconds, m for minutes

Delay before closing an idle POP3 connection. The POP3 RFC recommends 600 seconds. Consider reducing this significantly if you plan to expose Inbucket to the public internet.