The iOS 18.3.2 update appears to have introduced a bug related to Apple’s Mail application, as multiple users now claim that emails only appear in their inbox after a manual refresh.
Apple released iOS 18.3.2, a relatively minor update, on March 11, 2025. Though the software contains a significant security fix, it appears the update has also introduced a problem that affects the built-in Mail app and its push functionality, which is meant to display new emails as soon as they arrive.
Källa: iOS 18.3.2 update reportedly causes email delivery issues
