Unverified50% confidenceFactExact time
The ports used by APNs are 443 and 5223, and the server domain names connected to include courier.push.apple.com.
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
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