On the developer portal it is possible to see the imported outgoing certificates that are used within your application. I would really like to have an alert on the 'Valid to' field so I'm able to receive a notification when a certificate is about to expire. Mendix R&D sees this as a benefit, but wanted me to post this on the Idea forum to see how many others would appreciate this functionality as well.
To add to this, It would also be nice to have this option for other certificates. For example custom domain certificates.