dovecot/FreeBSD and Android IMAP clients

[Victor Sudakov]

Dear Colleagues,

I have a fairly vanilla setup of dovecot on FreeBSD, serving IMAP and POP3. 
Thunderbird/IMAP works fine, and so does mutt/IMAP.

However, Android clients (Gmail/IMAP and K-9 Mail) have problems
accessing folders other than the INBOX. They either show them empty
with no mails (K-9) or just wait forever to view the contents (Gmail app).

Do I need to set up some workarounds or hacks in dovecot for Android
IMAP clients to work correctly? Any advice is appreciated.


My config is below:

# 2.3.2.1 (0719df592): /usr/local/etc/dovecot/dovecot.conf
# OS: FreeBSD 11.2-RELEASE-p3 amd64  
# Hostname: admin.sibptus.ru
mail_location = mbox:~/Mail:INBOX=/var/mail/%u
mail_privileged_group = mail
namespace inbox {
  inbox = yes
  location = 
  mailbox Drafts {
    special_use = \Drafts
  }
  mailbox Junk {
    special_use = \Junk
  }
  mailbox Sent {
    special_use = \Sent
  }
  mailbox "Sent Messages" {
    special_use = \Sent
  }
  mailbox Trash {
    special_use = \Trash
  }
  prefix = 
}
passdb {
  driver = pam
}
protocols = imap pop3
ssl_cert = </usr/local/etc/exim/mail.pem
ssl_dh =  # hidden, use -P to show it
ssl_key =  # hidden, use -P to show it
userdb {
  driver = passwd
}

-- 
Victor Sudakov,  VAS4-RIPE, VAS47-RIPN
2:5005/49 at fidonet http://vas.tomsk.ru/