example

type AttachmentData struct {
	EncodedAttachment string
	FileName          string
}

type Email struct {
	To          EmailAddresses
	Cc          EmailAddresses
	Bcc         EmailAddresses
	From        EmailAddress
	Subject     string
	Body        string
	Attachments []AttachmentData
	InReplyTo   string // Message-id header of messaged being replied to
	References  []string
}

type EmailAddress struct {
	Name    string // display name
	Address string // email address
}

type EmailAddresses []EmailAddress