Integrate with throwaway.cloud

Block disposable emails at registration (throwaway.cloud integration)

Add an option in Settings → Registration & Checkout → Email permissions to block sign-ups using disposable/temporary email domains via the free throwaway.cloud API.

Organiser setting (new):

• Label: Block disposable/temporary emails

• Help text: “Prevent registrations with throwaway email services (checked against a maintained list via throwaway.cloud). Can be used alongside ‘Allow business emails only.’”

Technical notes:

Validate on email entry and on submit using throwaway.cloud.

• Send domain only (not full address) to minimize PII.

• Fallback behavior if API is unavailable (allow with warning).

• Log counts in Reporting (e.g., “Disposable emails blocked: 47”).

Why this helps:

• Reduces spam/low-intent signups, improves deliverability and sponsor ROI, and complements the existing ‘Allow business emails only’ control.
  
  

snapshot from the API docs