If iCloud says Mail storage is full while overall iCloud space looks available, mailbox indexing or stale quota data is usually the cause. These fixes force iCloud Mail to recalculate usage and remove ...
There are new cleanup tools that can be accessed for ‌iCloud‌ Mail from the Mail app, iCloud.com, and ‌iCloud‌ Mail settings. Time-based rules can be added for removing emails that are no longer ...