Milan Crha (who has a Red Hat email) wrote that this is not an Evolution bug, but instead a server bug. evolution-data-server 3.18.1 and later has a workaround.
https://mail.gnome.org/archives/evolution- list/2015-October/msg00059.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1504665 Title: Evolution fails to show Imap folder "Inbox". It only shows the unexisting grayed-out empty folder "INBOX" (all caps) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/evolution/+bug/1504665/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs