(smtpmail-default-smtp-server): Doc fix.

diff --git a/lisp/mail/smtpmail.el b/lisp/mail/smtpmail.el
index 3bf67b548bd43a8994a9b41172fd2745dcc74bed..9984a873ffa26cc75bdae0c08b6613992dc70fd5 100644 (file)
--- a/lisp/mail/smtpmail.el
+++ b/lisp/mail/smtpmail.el
@@ -84,7 +84,8 @@
 
 
 (defcustom smtpmail-default-smtp-server nil
-  "*Specify default SMTP server."
+  "*Specify default SMTP server.
+This only has effect if you specify it before loading the smtpmail library."
   :type '(choice (const nil) string)
   :group 'smtpmail)