How can I stop 1Password suggesting email addresses?

Hi,

In email address fields on web forms in Safari, the 1Password Safari extension suggests two email addresses (neither of which, BTW, are ones I want to use). I don't want 1Password to suggest email addresses. How can I stop it doing so? Alternatively, how can I figure out which email addresses end up populating that 1Password list and remove them?

Best,
Lyndon

1Password Version: 8.8.0
Extension Version: 2.3.7
OS Version: macOS 12.5
Browser:_ Safari