If I compose an email with mu4e I can only enter a recipient in the TO: field. But there are no fields for CC (carbon copy) and BCC (blind carbon copy). How can I use those fields?

2 Answers 2


Look in the Field Menu and select those fields. For me, the key shortcuts are C-c C-f C-c (message-goto-cc) for CC and C-c C-f C-b (message-goto-bcc) for BCC. These will add those fields.

Alternatively, I think you can just type them in yourself in the header, e.g. after the To: line, press enter, type Cc: and a space then add the email address you want.

  • yes, just typing the fields in manually works fine. Once you add the CC: mu4e knows to offer address completion. I didn't know there were shortcuts to do this!
    – Tyler
    Mar 5, 2021 at 4:51

You can automate like this (based on http://www.djcbsoftware.nl/code/mu/mu4e/Compose-hooks.html).

  ;; Always BCC myself
  ;; http://www.djcbsoftware.nl/code/mu/mu4e/Compose-hooks.html
  (defun my-add-header ()
    "Add CC: and Bcc: to myself header."
    (save-excursion (message-add-header
                     (concat "CC: " "\n")
                     ;; pre hook above changes user-mail-address.
                     (concat "Bcc: " user-mail-address "\n"))))
  (add-hook 'mu4e-compose-mode-hook 'my-add-header)

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