Apple Mail contacts iCloud servers even when sending non-iCloud emails

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A software researcher has raised concerns about Apple's Mail app making unexpected connections to iCloud servers during the process of sending emails from non-iCloud accounts. The behavior was documented and published in early August 2026 on the Lapcat Software blog. The finding suggests that Apple Mail may be communicating data back to Apple's infrastructure regardless of which email provider a user is sending through. This raises potential privacy questions for users who rely on third-party email services and expect their mail activity to remain independent of Apple's cloud. The post attracted attention on Hacker News, though no public comments had been made at the time of aggregation.

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