Apple Mail privacy and email timers
What was on this page is now on the Apple Mail client page, which quotes Apple's own documentation.
- Countdown timers in Apple Mail, with Mail Privacy Protection says when Apple fetches a timer, what a reader sees, and which timer type to send to an Apple-heavy list.
- How Apple's image cache freezes a countdown separates what Apple publishes from what only third-party testing reports.
- Which email clients show a countdown timer covers Gmail, Outlook, Yahoo and the mobile apps.
- The other write-ups on caching are on the blog.
The API reference covers the endpoints, and pricing covers what each plan includes.