I am using offlineimap to sync my gmail account to a locak maildir, then using gnus to read that directory everything is fine but gnus uses its own flags for marking read unread status of messages and they are not synced back to gmail. is there a way to force gnus to use standart maildir flags?
AFAIK, the situation has not improved about nnmaildir and gnus since this.
For this exact situation, I'm now using mutt, setting Emacs as its editor.