return to app after send e-mail

In an app being developed using Expo and Vue Native there is an option for users to tap a button to request an instructional PDF. This button opens their e-mail, pre-populates the “To” and “Subject” fields so all they need to do is press Send.

This app is being tested on real phones, not on a simulator. On an Android phone, after Send is tapped, the e-mail is sent and then it automatically redirects back to the app. However, on iOS after Send is tapped, it sends the e-mail then displays the e-mail inbox with a tiny link to Expo in the upper left hand corner. The desired behavior is that it sends the e-mail then redirects back to the app, like on the Android.

The mechanism being used for the e-mail link is expo-linking. Is there a way to change the behavior in iOS to achieve the desired behavior?

Here is a simplified version of the code:

<template>
    <nb-content>
	  <nb-button :onPress="() => { Linking.openURL('mailto:customerservice@gmail.com?subject=instruction request') }">
		<nb-text>Request instructions</nb-text>
	  </nb-button>
    </nb-content>
</template>

<script>
import * as Linking from 'expo-linking';

export default {
  data() {
    return {
      Linking: Linking
    }
  }
}
</script>