you can write an aspect on the mailserver implementation, to log every mail send. But that's maybe a little bit crazy and needs an experienced developer ;)
Alternativly you can listen to the same events and look, who watches the page and space to come to your information, this can be done with a listener module and needs some coding.
Maybe you can us logging on your mta?
Two vulnerabilities have been published for Confluence Server and Data Center recently: March 20, 2019 CVE-2019-3395 / CVE-2019-3396 April 17, 2019 CVE-2019-3398 The goal of this article is...
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