+ * SMTP authentication mechanism
+ *
+ * auth_mech can be either 'none', 'login','plain', 'cram-md5', or 'digest-md5'
+ * @global string $smtp_auth_mech
+ */
+$smtp_auth_mech = 'none';
+
+/**
+ * Custom SMTP authentication username
+ *
+ * IMAP username is used if variable is set to empty string.
+ * Variable is included in main configuration file only from 1.5.2 version.
+ * Older versions stored it in config_local.php.
+ * @global string $smtp_sitewide_user
+ * @since 1.5.0
+ */
+$smtp_sitewide_user = '';
+
+/**
+ * Custom SMTP authentication password
+ *
+ * IMAP password is used if $smtp_sitewide_user global is set to empty string.
+ * Variable is included in main configuration file only from 1.5.2 version.
+ * Older versions stored it in config_local.php.
+ * @global string $smtp_sitewide_pass
+ * @since 1.5.0
+ */
+$smtp_sitewide_pass = '';
+
+/**
+ * IMAP authentication mechanism
+ *
+ * auth_mech can be either 'login','plain', 'cram-md5', or 'digest-md5'
+ * @global string $imap_auth_mech
+ */
+$imap_auth_mech = 'login';
+
+/**
+ * IMAP folder delimiter
+ *
+ * This is the delimiter that your IMAP server uses to distinguish between
+ * folders. For example, Cyrus uses '.' as the delimiter and a complete
+ * folder would look like 'INBOX.Friends.Bob', while UW uses '/' and would
+ * look like 'INBOX/Friends/Bob'. Normally this should be left at 'detect'
+ * but if you are sure you know what delimiter your server uses, you can
+ * specify it here.
+ *
+ * To have it autodetect the delimiter, set it to 'detect'.
+ * @global string $optional_delimiter
+ */
+$optional_delimiter = 'detect';
+
+/**
+ * POP before SMTP setting
+ *
+ * Do you wish to use POP3 before SMTP? Your server must
+ * support this in order for SquirrelMail to work with it.
+ * @global bool $pop_before_smtp
+ */
+$pop_before_smtp = false;
+
+/**
+ * POP before SMTP server address
+ *
+ * When using POP3 before SMTP, if the POP server address is
+ * not the same as the SMTP server address, specify it here.
+ * If this is left empty, the SMTP server address will be
+ * used by default.
+ * @global bool $pop_before_smtp_host
+ */
+$pop_before_smtp_host = '';
+
+
+/*** Folder Settings ***/
+/**
+ * Default IMAP folder prefix
+ *