MFMailComposeViewController.canSendMail() returns true even when Mail app is not installed on the device. This seems to have changed recently. Is this normal behaviour?
MFMailComposeViewController.canSendMail() how to detect which mail client is available
You're tagging your question with Mail Extensions.
Note that this tag is related to the macOS MailKit framework. Your question does not apply to this, but to the iOS MFMailComposeViewController framework.
Please consider to remove this tag.