Another option, in case you think you might want to look at these e-mails in the future, is to create a filter on your e-mail box so you'll not see those e-mails on the inbox.
Otherwise, if you really don't want to receive them any longer you will need to unwatch the topics just as Panos has mentioned.
I hope it helps!
Hi team, I’m Avinoam, a product manager on Confluence Cloud, and today I’m really excited to let the Community know that all customers can now try out the new editing experience and see some of the ...
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