Through Service Configuration system administrators can manage logging, authentication and encryption, error and thread control parameters.
Logging
You can select several types of messages to be logged for the POP3 service: critical messages, error messages, warning messages, informational messages and protocol communication. To select which of these are to be logged, click the Log Level slider and move it to the left or to the right. The selected types of messages will change color from whiter to gray.
Log files can be stored using your internal log files, your system's log files or within the log files located on a remote system. Use the Log drop-down menu to select where to have your log files saved.
Encryption and Authentication
By checking the Allow StartTLS, you allow sending the STARTTLS command for encrypting the connection if the server supports this command.
Select the allowed authentication types the AXIGEN Mail Server should use for its POP3 secure connections (SSL/TSL) in the SECURE connections check list. Possible options are: normal login, plain, login, cram-md5, digest-md5 and gssapi. By default, all these methods are selected (all types of authentication are allowed on a secure connection). The methods are further divided into two categories: secure and unsecure.
Select the allowed authentication types the AXIGEN Mail Server should use for its POP3 unsecure connections in the UNSECURE connections check list. Possible options are: normal login, plain, login, cram-md5, digest-md5 and gssapi. By default, all these methods are selected (all types of authentication are allowed on an unsecure connection). The methods are further divided into two categories: secure and unsecure.
Error Control
To set a maximum number of errors caused by invalid commands received from clients or by failed authentication attempts, check the respective options in the Error Control area of the POP3 service. Use the up and down arrows corresponding to each of these options to set a specific number of errors.
Thread Management
POP3 Options
The administrator is able to configure the greeting string at POP3 service level. This option is available as a service configuration from both CLI and WebAdmin. When defining the greeting string, the administrator uses the following placeholders (note that the placeholders are case sensitive):
- %H = network hostname of the server machine
- %D = network hostname.domainname of the server machine (FQDN)
- %A = listener IP
- %P = listener port
- %U = APOP ID in followin format number.number@hostname.domainname
- %V = axigen version
- %% = %