Debugging Features

Postfix has two levels of logging. The first level is the normal maillog, which reports on all normal mail activities such as received and sent mail, server errors, shutdowns, and startups. The second level is more verbose and can be tuned to log activity relating to specific SMTP clients, host names, or addresses. This page contains the configuration for the second level of logging.

List of domain/network patterns for which verbose log is enabled

This is a list of patterns or addresses that match the clients, hosts, or addresses whose activity you would like to have more verbose logging for. Values here could be an IP address like 192.168.1.1 or a domain name like swelltech.com. This option correlates to the debug_peer_list directive and is empty by default.

Verbose logging level when matching the above list

Specifies the level of verbosity of the logging for the activity that matches the above patterns. This option correlates to the debug_peer_level directive and defaults to 2. The above field must have at least one value for this debug level to have any impact.