Editing Help:Email notification (section)

==Watched pages==
Once you miss the email for a particular page change or don't visit the page (or ignore the email), ''you will not receive any more emails for that page''. You can still dutifully monitor that page by its watchlist edit-summaries, but its particular email notification flag will remain unset until you visit it. This facilitates monitoring a large watchlist while preventing potentially useless emails to you.

In case you want to set ''all'' email notifications anyway, you can at any time mark all pages "visited". Your watchlist has a button labeled "Mark all pages visited" which will effectively set all of your email notification flags.