Confluence doesn't send email when adding comment or changing page

flex

Please check below.

With mention someone make log but other is not..

I just check atlassian-confluence.log with tail command.

Like mention or sharing function is OK. (sending mail is OK)

But, normal comment or changing page action can't send a mail to watching people.

Patrick Cartier [Candylio]

I think the issue might be with the core listeners system add-on.

Try this: 

https://confluence.atlassian.com/confkb/notification-e-mails-are-not-being-sent-for-watched-content-329984119.html