search for: dublettes

Hello Joseph, thanks for your reply. > doveadm fetch -u my-mailbox at domain.net 'guid hdr.message-id' ... > > You're on your own for everything else. That works and I may be can make it work with that using a shell-script interacting with getmail as Filter. But indeed it's fetching ALL message-ids. It would be perfect if I could make search query on 'guid