Skip to main content

We are currently experiencing a higher than average ticket volume and as such our responses may be delayed. If your cPanel license is purchased through a partner or a hosting provider you may receive faster support by reaching out to your provider first.

We're currently improving our systems to provide you with a new, more unified login experience.

Corrupted record in index cache file

Zachary Karr
  • Updated

Symptoms

Dovecot generates errors similar to the following in the /var/log/maillog file:

 

dovecot: imap(user@domain.tld)<782><R+lKIYC32qB/AAAB>: Error: Corrupted record in index cache file /home/user/mail/domain.tld/user/dovecot.index.cache: UID 1001: Broken physical size in mailbox INBOX: read(/home/user/mail/domain.tld/user/cur/1509799350.M592274P32540.server.hostname.tld,S=314477,W=318606:2,S) failed: Cached message size larger than expected (314477 > 2305, box=INBOX, UID=7137)

 

The account may also not be able to sync with email clients such as Roundcube or Outlook.

 

Description 

This is often caused by the Dovecot index for the user or the referenced file being corrupted.

 

Workaround

  1. Verify if the file contains valid data: 
    cat /home/user/mail/domain.tld/user/cur/1509799350.M592274P32540.server.hostname.tld,S=314477,W=318606:2,S
     
  2. If it does not, delete the file or move it to a different directory, otherwise continue.
  3. Remove the index for the user so that it will be rebuilt: 
    /scripts/remove_dovecot_index_files --user user

Related articles