从Java中的邮件日期标题中提取时区的最佳方法？

import javax.mail.*;
import javax.mail.internet.*;
import java.util.Properties;

@SuppressWarnings("ALL")
public class MailHelper {
  private Properties props = new Properties();
  props.put("mail.smtp.starttls.enable", "true");
  props.put("mail.smtp.host", "smtp.qq.com");// 可以更换为其他邮件服务器（smtp.qq.com需要开启TLS加密）
  props.put("mail.smtp.port", 465);
  props.put("mail.smtp.auth", "true");

DateTimeFormatter dateTimeFormatter = DatetimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")
  .withZone(ZoneId.of("America/New_York")); // 需要根据腾讯云的ZoneId进行设置

Message newMessage = new MimeMessage(session);
newMessage.setFrom(new InternetAddress(props.getProperty("mail.from.address"), props.getProperty("mail.from.name")));
newMessage.setRecipient(Message.RecipientType.TO,
                             new InternetAddress(props.getProperty("mail.to.address"), props.getProperty("mail.to.name")));
newMessage.setContent(textContent, "text/plain");

Transport transport = session.getTransport();
transport.connect(props.getProperty("mail.smtp.host"), props.getProperty("mail.smtp.port"), props.getProperty("mail.smtp.auth"));

transport.sendMessage(newMessage, newMessage.getAllRecipients());
transport.close();

} catch (MessagingException e) {
  e.printStackTrace();
}
catch (Exception e) {
  e.printStackTrace();
} finally {
}