Be sure to download and install iOS 18.6 on your iPhone and other updates from Apple to get the latest bug fixes and security protections for all your devices.
Mailbox categorization in Apple Mail app on iPhone, iPad and Mac doesn't show all emails at once, but you can bring back an All Mail view easily with a few clicks.
Apple's iOS 18.5 and iPadOS 18.5 software updates let you turn off contact photos in the built-in Mail app on your iPhone and iPad with fewer clicks than before.