summaryrefslogtreecommitdiff
path: root/lisp/startup.el
diff options
context:
space:
mode:
Diffstat (limited to 'lisp/startup.el')
-rw-r--r--lisp/startup.el4
1 files changed, 3 insertions, 1 deletions
diff --git a/lisp/startup.el b/lisp/startup.el
index 57d7a74e5ec..37e4f550dcd 100644
--- a/lisp/startup.el
+++ b/lisp/startup.el
@@ -339,7 +339,9 @@ this variable usefully is to set it while building and dumping Emacs."
(error "Customizing `site-run-file' does not work")))
(defcustom mail-host-address nil
- "Name of this machine, for purposes of naming users."
+ "Name of this machine, for purposes of naming users.
+If non-nil, Emacs uses this instead of `system-name' when constructing
+email addresses."
:type '(choice (const nil) string)
:group 'mail)