Unverified50% confidenceFactExact time
When a third-party mail server detects a new email, it needs to push a notification to the user's device via Apple's APNs interface, even if the email itself does not pass through Apple's servers.
1
Sources
50%
Confidence
Long-term
Relevance
8/4/2026
First Seen
Sources
苹果Mail发送非iCloud邮件时为何连接iCloud服务器？原因解析
Related Claims
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