Hi,I have a troble and can not resolve it. Please help me.
   
   
    
   
   
    I updated dovecot from 2.1.16 to 2.2.36.4.
   
   
    As a result, I had a client who could not access via imap.
   
   
    The client showed his logs (- folder not exists:INBOX )
   
   
    I did not change dovecot config files.
   
   
    
   
   
    So I searched a difference between 2.1.16 and 2.2.36.4,
   
   
    I discovered . Please refer below results.
   
   
    
   
   
    [2.1.16]
   
   
    a03 list "" "*"
   
   
    * LIST (\HasChildren) "." "INBOX"
   
   
    * LIST (\HasNoChildren) "." "INBOX.Drafts"
   
   
    * LIST (\HasNoChildren) "." "INBOX.Sent"
   
   
    * LIST (\HasNoChildren) "." "INBOX.Spam"
   
   
    * LIST (\HasNoChildren) "." "INBOX.Trash"
   
   
    
   
   
    [2.2.36.4]
   
   
    a03 list "" "*"
   
   
    * LIST (\HasChildren) "." INBOX
   
   
    * LIST (\HasNoChildren) "." INBOX.Drafts
   
   
    * LIST (\HasNoChildren) "." INBOX.Sent
   
   
    * LIST (\HasNoChildren) "." INBOX.Spam
   
   
    * LIST (\HasNoChildren) "." INBOX.Trash
   
   
    
   
   
    For example, I noticed INBOX and "INBOX".
   
   
    2.2.36.4 dovecot is no [""].
   
   
    
   
   
    What should I do?
   
  
  
   This appears to be a client bug. Maybe the user should attempt to upgrade the client?