If you publish a blog post when the notifications settings are turned off, the Blog Tool will send the notification email when the settings are turned back on IF:
- Instant is turned on within 12 hours
- Daily is turned on by the end of the day
- Weekly is turned on by the end of the week
- Monthly is turned on by the end of the month
End of the Day/Week/Month is defined by the publishing calendar. If a post is set to send out on Monday at 9:00am, a post published on the next day would still pull into in the notification if weekly notifications are turned on before the following Monday at 9:00am.