https://www.caniemail.com/features/html-button-submit/
Can I email… <button type="submit"> element
Supported in Apple Mail. Partially supported in Gmail, Outlook, Yahoo! Mail.
lt button typesubmit gt
https://www.caniemail.com/features/html-input-submit/
Can I email… <input type="submit"> element
Supported in Apple Mail. Partially supported in Gmail, Outlook, Yahoo! Mail.
lt input typesubmit gtelement