I'm unable to find a report based on the recipients Mail Client. With the rendering of, real-world, emails vastly different in Outlook 2013, 2016 & 365. I'm trying to get a breakdown of our customers, so as to focus on the larger groups when we have rendering issues.
I can find, Platform, Device and Browser. But no client data.
@AndrewKriz I don't think the 'client' dimension is available oob and there isn't any straightforward way to implement a custom dimension. There's a possibility for you to capture the email client information at the user profile level and then have that available in reports. Refer this link: https://experienceleague.adobe.com/docs/campaign-standard/using/reporting/customizing-reports/creati... (You might have to make some tweaks as per your use case)
@AndrewKriz Detailed information around rendering in different email clients, is dependent on the license agreement.
Hope this helps.
As I mentioned it's licensed, you can refer to the screenshots shown in the documentation(shared above) to navigate to it