idstring required
Unique identifier of the draft
fromIdentityIdstring nullable required
EmailIdentity used as the sender, or null to use the agent's primary identity at send time
tostring[] required
Recipient email addresses
ccstring[] required
CC recipient email addresses
bccstring[] required
BCC recipient email addresses
subjectstring nullable required
Subject line, or null if not yet written
bodystring nullable required
Plain-text body, or null if not yet written
bodyHtmlstring nullable required
HTML body, or null if not provided
inReplyTostring nullable required
Optional In-Reply-To Message-ID for threading on send
referencesstring[] required
Optional References Message-ID chain for threading
metadataobject nullable required
createdAtstring date-time required
Timestamp when the draft was created
updatedAtstring date-time required
Timestamp when the draft was last updated