latestOpenAPI 3.1.0MIT2026-08-22113168358.0 KB

2d06ad0e0bc3

Email Validation

Check Email Compatibility

Test email HTML on major webmail, desktop, and mobile clients and return a compatibility report. Flags rendering issues in Gmail, Outlook, Apple Mail, and other supported clients.

post/v1/emails/validate/compatibility

Request body

htmlstring required

Email HTML content to validate

clientsstring[]

Specific email client IDs to test (optional; defaults to the standard client set)

Response

Compatibility check completed

successboolean