get
https://{APP_DOMAIN}/api/3.2/o/subscribe-prefill
Resolves the recipient of an internal email link so a subscribe form can prefill their address. Requires the link's identifier (MD5 of the recipient address) and message_id. The address is returned only when that recipient was sent the broadcast or auto responder identified by message_id within the last 7 days. Every failure returns the same 404. Lookups are limited per IP.
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The recipient email address.
The link could not be resolved, does not match, or has expired.
Too many lookups from this IP.