Error Changing For Mailbox Quota in Cpanel

Error – invalid maildirsize file



If you're experiencing the following error: invalid maildirsize file on your server when changing a quota in the email accounts section of your cPanel, your mailbox may be corrupt. The "invalid maildirsize file" error can be easily corrected 99% of the time by following this simple solution

# Login to your server via FTP
# Navigate to the following path /mail/yourdomain.com/user

# From this directory, delete the file named maildirsize
# Once this file is deleted, the system should reform the mail account automatically with the correct mailbox quota size upon new email activity.

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