NILToday I encountered an unknown issue to me with my Imap server
dovecot. In roundcube mail web client, my Inbox folder appeared empty
after being reading a mail. My Android mail client K9-Mail was
displaying "IOException:readStringUnti...." when trying to synchronize
this folder.
I solved it easily by connecting to my server with SSH, cd-ing into
the maildir directory and in the Inbox folder, renamed
if it fix the problem).
And now, mails are back. This is the very first time I have a problem
of this kind with dovecot...