Deleting Email on Multiple Devices

To sync email deletion across multiple devices, you'll need to enable IMAP (or POP3) settings on your email account.

IMAP is generally preferred as it allows you to view and manage your emails from multiple devices without having to download them to each one. Changes made on one device will be reflected on the others.   

POP3 downloads emails to your device and marks them as deleted there. However, if you delete an email on one device, it will also be deleted from the server, meaning it won't be available on your other devices.   

Here's a general guide on how to enable IMAP or POP3 settings:

Access your email account settings: Log in to your email account on a web browser. Look for a "Settings," "Options," or "Gear" icon.
Find the "Accounts" or "Mail Settings" section.
Look for options related to IMAP or POP3. You might need to click on "Add Account" or "Manage Accounts."
Enable IMAP or POP3: Select the option that suits your preference. If IMAP is available, it's usually the recommended choice.
Save your changes.
Once you've enabled IMAP or POP3, any changes you make to your emails on one device, such as deleting them, should be reflected on your other devices.

Note: The specific steps may vary slightly depending on your email provider. If you're having trouble, you can consult your email provider's help center or contact their support team for assistance.