I am using mu4e for email in Emacs, and it is currently only configured for one mail account, and I set key to view different inbox. I wonder how to use mu4e for managing multiple email accounts?


I'm using mu4e with two accounts. Each account has its own maildir:

+---- work
`---- private

The manual comes with an example function to choose an account:

(defun my-mu4e-set-account ()
  "Set the account for composing a message."
  (let* ((account
          (if mu4e-compose-parent-message
              (let ((maildir (mu4e-message-field mu4e-compose-parent-message :maildir)))
                (string-match "/\\(.*?\\)/" maildir)
                (match-string 1 maildir))
            (completing-read (format "Compose with account: (%s) "
                                     (mapconcat #'(lambda (var) (car var))
                                                my-mu4e-account-alist "/"))
                             (mapcar #'(lambda (var) (car var)) my-mu4e-account-alist)
                             nil t nil nil (caar my-mu4e-account-alist))))
         (account-vars (cdr (assoc account my-mu4e-account-alist))))
    (if account-vars
        (mapc #'(lambda (var)
                  (set (car var) (cadr var)))
      (error "No email account found"))))

;; ask for account when composing mail
(add-hook 'mu4e-compose-pre-hook 'my-mu4e-set-account)

For that to work you will also need the my-mu4e-account-alist:

(defvar my-mu4e-account-alist
     (user-mail-address  "private@domain.net")
     (user-full-name     "My Name")
     (mu4e-sent-folder   "/private/Sent Items")
     (mu4e-drafts-folder "/private/Drafts")
     (mu4e-trash-folder  "/private/Deleted Items")
     (mu4e-refile-folder "/private/Archive"))
     (user-mail-address  "work@domain.net")
     (mu4e-sent-folder   "/work/Sent Items")
     (mu4e-drafts-folder "/work/Drafts")
     (mu4e-trash-folder  "/work/Deleted Items")
     (mu4e-refile-folder "/work/Archives"))))

(setq mu4e-user-mail-address-list
      (mapcar (lambda (account) (cadr (assq 'user-mail-address account)))

You can simply switch between mail folders with j, as long as all of your maildirs are subdirectories of mu4e-maildir.

I'm actually using a more elaborate function for mu4e-trash-folder and mu4e-refile-folder to avoid moving emails from one maildir over to another, but the information above should be sufficient to use multiple accounts.

  • I'm struggling to comprehend how mu4e knows which inbox to show. There's no mu4e-inbox-folder variable, and when I press ji I get incoming mail from all of my accounts, not just the work or private context. – AstroFloyd May 5 at 8:20

I'm using two different accounts that I want to mix as little as possible.

offlineimap is configured with two accounts, one delivering mail into ~/.maildir-work the other one into ~/.maildir-home.

My configuration for mu4e uses the new context mechanism:

(setq mu4e-contexts
      `( ,(make-mu4e-context
           :name "home"
           :match-func (lambda (_) (string-equal "home" (mu4e-context-name mu4e~context-current)))
           :enter-func '()
           :leave-func (lambda () (mu4e-clear-caches))
           :vars '((mu4e-maildir . "~/.maildir-home")
                   (mu4e-mu-home . "~/.mu-home")
                   (mu4e-get-mail-command . "offlineimap -a Home")
           :name "work"
           :match-func (lambda (_) (string-equal "work" (mu4e-context-name mu4e~context-current)))
           :enter-func '()
           :leave-func (lambda () (mu4e-clear-caches))
           :vars '((mu4e-maildir . "~/.maildir-work")
                   (mu4e-mu-home . "~/.mu-work")
                   (mu4e-get-mail-command . "offlineimap -a Work")
  • I'm having trouble getting this example working. Per the docs the mu4e-maildir and mu4e-mu-home variables aren't supposed to be changeable without quitting mu4e first. I posted a bit more detail here on my set up. – kostajh May 19 '16 at 13:39
  • Indeed, I've had to resort to restarting Emacs when switching. For me that's still worth it. – Magnus May 19 '16 at 16:12

I'm using a setup very similar to Magnus', and just wanted to add that (mu4e-quit) exists, and it works fine for cleaning up accounts without restarting. Actual mechanism:

(defun mail-gmail ()
  (setenv "MAILDIR" "/Users/foo/Maildir/gmail")
  (setenv "MU_HOME" "/Users/foo/.mu/gmail")
  (setq mu4e-maildir "/Users/foo/Maildir/gmail")
  (setq user-mail-address "...")
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