I am looking for a simple explanation of the different categories in the Breakdown of opens e-mail delivery report, but can't find this documented or discussed anywhere. I would greatly appriciate is someone can point me in the right direction.
My main goal is to understand what our actual share of iPhone users is (this is of course related to iOS15 and Apple's protection of e-mail activity).
![devices.jpg devices.jpg](https://experienceleaguecommunities.adobe.com/t5/image/serverpage/image-id/37978i1F6FDBF68F15489E/image-size/large/is-moderation-mode/true?v=v2&px=999)
iPhone: Can I trust this to be all iPhones, or is it just those who use Apple Mail? Does customers using the Gmail app on iPhone also fall into this category?
Proxy: From what I have read this will include iPhones where Apple has "protected" the e-mail in iOS15 (by opening the e-mail by default). Is this correct?