Jmap
constructor(id: String, threadId: String, mailboxIds: Map<String, Boolean>, keywords: Map<String, Boolean>? = null, size: Long, receivedAt: String, hasAttachment: Boolean? = null, preview: String? = null, subject: String? = null, from: List<EmailAddress>? = null, to: List<EmailAddress>? = null, cc: List<EmailAddress>? = null, bcc: List<EmailAddress>? = null, bodyStructure: Any? = null, bodyValues: Map<String, BodyValue>? = null, textBody: List<BodyPart>? = null, htmlBody: List<BodyPart>? = null)