Automatic WordPress Plugin Updates Not Sending

On my downloads page I have all the checkboxes checked to be notified by email when the plugins update. I regularly get updated product emails for my theme and one plugin but not all of the plugins. This has crashed my site 3 times now! I checked my spam folder and everything. Why are these two plugins not sending me updated plugin emails?

At the last company I worked for we created and sold plugins. I thought an email went automatically when there was an update.

When authors upload new versions of their items, they must check a box in order to send update notifications. It’s possible those authors aren’t doing so, especially if you are receiving update notifications for other items.

It’d be best to reach out to those authors and inquire about it (e.g. via their comments sections). If they aren’t aware that it’s a problem, they may not fix it.