Configuring Dovecot

This set of options will be presented to you when you access the IMAP configuration screen while running the Dovecot mail server. When you are finished making your changes, remember to click the Save button.

You can undo any changes you have made by clicking the Reset link at the bottom of the page.

Configuration Option	Description
Protocols Enabled	You may click the checkboxes to enable standard IMAP, secure IMAP, standard POP3, and secure POP3 respectively. Note: cPanel’s Webmail feature requires that standard IMAP be enabled.
Allow Plaintext Authentication	When active, this option does not require an encryption method (SSL/TLS) for users logging in from remote clients. Note: Setting this option to no is preferable to disabling standard IMAP, if you wish to require remote webmail logins to use encryption.
SSL Cipher List	The list of ciphers, in standard format, which will be allowed to connect to your server using the POP3 protocol. For more information on ciphers, see http://www.openssl.org/docs/apps/ciphers.html.
Maximum IMAP Connections per IP	Defines the maximum number of simultaneous IMAP connections available to the mail server for 1 IP address.
Maximum POP3 Connections Per IP	Defines the maximum number of simultaneous POP3 connections available to the mail server for 1 IP address.
Number of Spare Authentication Processes	Defines how many authentication daemons will be kept in reserve while other authentication daemons are being used.
Maximum Number of Authentication Processes	Defines the maximum number of authentication daemons that can run simultaneously. Consider the needs of your mail server before entering a value other than the default value. Too many authentication daemons can cause your server to run slowly due to its system resources being consumed by these authentication daemons. Too few authentication daemons can cause your server to run slowly due to a lack of daemons to authenticate each session, thereby forming a queue.
Size of Authentication Cache (KB)	Defines, in Kilobytes, the maximum amount of space on the hard drive that the cache file (which contains data about validated logins) can use.
*Time to Cache Successful Logins (seconds)	Specifies, in seconds, the amount of time that a successful login attempt record will be stored in the cache file.
Time to Cache Failed Logins (seconds)	Specifies, in seconds, the amount of time that a failed login attempt record will be stored in the cache file.
Use New Login Process For Each Connection	Defines whether to use a newly created authentication process each time a connection attempt is made.