diff --git a/.emacs.d/lisp/init-message.el b/.emacs.d/lisp/init-message.el
index d70eae20..3971e7a5 100644
--- a/.emacs.d/lisp/init-message.el
+++ b/.emacs.d/lisp/init-message.el
@@ -1,5 +1,7 @@
 ;; Message mode
 ;; This is common to Gnus, mu4e, notmuch, etc.
+;;; TODO: Is it possible to mbsync without attachments?
+
 (require 'init-smtpmail)
 
 (setq user-full-name "Pierre Neidhardt"
@@ -13,7 +15,9 @@
 
 ;; TODO: Use the following to automatically set the From: field when replying.
 ;; Might not be necessary.
-;; message-alternative-emails
+;; `message-alternative-emails'
+;; Also see the `gnus-alias' and `smtpmail-multi' packages.
+;; https://old.reddit.com/r/emacs/comments/5iievm/nice_email_configuration_using_emacs_mbsync/
 
 
 (defun message-recipients (&optional include-from)
diff --git a/.emacs.d/lisp/init-mu4e.el b/.emacs.d/lisp/init-mu4e.el
index 5c9da6bb..cff01136 100644
--- a/.emacs.d/lisp/init-mu4e.el
+++ b/.emacs.d/lisp/init-mu4e.el
@@ -1,6 +1,5 @@
 ;;; mu4e
 
-;;; TODO: Is it possible to mbsync without attachments?
 ;;; REVIEW: Handle attachments in attached e-mails.
 ;;; See https://github.com/djcb/mu/issues/454#issuecomment-320616279.
 ;;; TODO: <tab> should go to next link in text e-mails too.