Whenever you try to access the webmail folder, you will receive an error by stating:
An error occurred! Server error! (OK)
Unexpected condition from IMAP server, closed or corrupt connection to IMAP. Possible mailbox corruption.
This may due to the problem in the index file which is corrupted.
For instance:
If the backend of MySQL is used in Roundcube: /var/cpanel/roundcube/log/errors
If the backend of SQL is used in Roundcube: You have to mind two versions in cPanel such as
cPanel version equalized to 78: /home/$username/tmp/errors
cPanel version next to 78: /home/$username/logs/roundcube/errors.log
If the service for cPanel’s PHP-FPM is enabled then process: /home/$username/logs/.php.error.log
Let us see the solution:
Index files are mostly utilized by Dovecot because it is necessary to read mailboxes immediately. Each mailbox has separate files so that, if the index files get missed mistakenly, you can recreate them using Dovecot.
Step 1: Leave from sessions of webmail immediately.
Step 2: Open the file “File Manager” and then /mail/ directory. Place the user folder and domain to the file correctly:
Step 3: Go to the file “dovecot.index” and then change the name to “dovecot.index.bak”.
By now, you will see the index files are recreated automatically. You won’t get errors while login in again.
An error occurred! Server error! (OK)
Unexpected condition from IMAP server, closed or corrupt connection to IMAP. Possible mailbox corruption.
This may due to the problem in the index file which is corrupted.
For instance:
If the backend of MySQL is used in Roundcube: /var/cpanel/roundcube/log/errors
If the backend of SQL is used in Roundcube: You have to mind two versions in cPanel such as
cPanel version equalized to 78: /home/$username/tmp/errors
cPanel version next to 78: /home/$username/logs/roundcube/errors.log
If the service for cPanel’s PHP-FPM is enabled then process: /home/$username/logs/.php.error.log
Let us see the solution:
Index files are mostly utilized by Dovecot because it is necessary to read mailboxes immediately. Each mailbox has separate files so that, if the index files get missed mistakenly, you can recreate them using Dovecot.
Step 1: Leave from sessions of webmail immediately.
Step 2: Open the file “File Manager” and then /mail/ directory. Place the user folder and domain to the file correctly:
Code:
/home/<username>/mail/<domain name>/<email account name>/By now, you will see the index files are recreated automatically. You won’t get errors while login in again.
