The IMAP tab allows you to configure parameters relative to this specific service's configuration, to add listeners and manage access to the service by adding rules applicable to all existing listeners. For details on listener and rule configuration, see the Listeners chapter.

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 IMAP 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 IMAP 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 IMAP 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. Use the up and down arrows corresponding to each of these options to set a specific number of errors.

Thread Management

Thread management allows you to set different numbers of processing threads for the IMAP service, depending on your traffic load. First, using the up and down arrows, set a number of threads to be allotted when the IMAP service is started. To have a different number of threads for peak periods, check the overload option and use the up and down arrows to choose the thread number.

IMAP Options

The administrator is able to configure the greeting string at IMAP 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):

When you are done configuring these parameters, remember to hit the Save Configuration button to preserve your changes.