Spark has introduced a number of different Shortcuts that can do things like compose an email, search email, or open a folder, with a list available from the release notes.
- Open any folder: if you keep all your to-dos inside Pins, create a shortcut to this folder with a phrase like 'Hey Siri: "Open Pinned email in Spark."All of Spark's Siri Shortcuts can be accessed by opening up the Spark Settings and selecting "Siri & Shortcuts."
- Search email: frequent travelers can create a shortcut for searching all emails from Airbnb/Booking.com to see your reservations.
- Compose an email. Create a shortcut for composing an email to specific people if you email them often. Next time, you'll just have to say: 'Hey Siri, email my team!'
Spark can be downloaded from the App Store for free. [Direct Link]