"Open and close a POP connection shortly.
POP server should be defined in `mail-source-primary-source' (which is
preferred) or `mail-sources'. You may use it for the POP-before-SMTP
-authentication. To do that, you need to set the option
-`message-send-mail-function' to `message-send-mail-with-smtp' or
-`message-smtpmail-send-it' and put the following line in .gnus file:
+authentication. To do that, you need to set the
+`message-send-mail-function' variable as `message-send-mail-with-smtp'
+or `message-smtpmail-send-it' and put the following line in your
+~/.gnus.el file:
\(add-hook 'message-send-mail-hook 'mail-source-touch-pop)
-"
+
+See the Gnus manual for details."
(let ((sources (if mail-source-primary-source
(list mail-source-primary-source)
mail-sources)))