- * @param array $options:
- * 'replyTo' MailAddress
- * 'contentType' string default 'text/plain; charset=UTF-8'
- * 'headers' array Extra headers to set
+ * @param array $options Keys:
+ * 'replyTo' MailAddress
+ * 'contentType' string default 'text/plain; charset=UTF-8'
+ * 'headers' array Extra headers to set