When you create a new email on your iOS device and begin to type in a recipient, you may notice iOS automatically populating email addresses. These recent addresses are a combination of your contacts and people you’ve recently emailed.

Passcode Lock is a very useful feature to keep others out of your device. The downside is, certain features like Siri and Reply With Message are still available unless you disable them.

Configuring contact relationships for Siri can make things like sending messages, emails, or making calls a lot easier.