Mine

	public void sendEmails() {
		for(String email: emails) {
			new EmailMailer(session,from,email,subject,body,mime);
		}
	}

	class EmailMailer implements Runnable {
		private Session session;
		private String from;
		private String to;
		private String subject;
		private String body;
		private String mime;

		public EmailMailer(Session session,String from,String to,String subject, String body,String mime) {
			this.session = session;
			this.from = from;
			this.to = to;
			this.subject = subject;
			this.body = body;
			this.mime = mime;
			new Thread(this);
		}

		public void run() {
			try {
				final Message msg = new MimeMessage(session);
				final Address from = new InternetAddress(this.from);
				final Address whom = new InternetAddress(this.to);
				msg.setContent(body,mime);
				msg.setFrom(from);
				msg.setRecipient(Message.RecipientType.TO, whom);
				msg.setSubject(subject);
				Transport.send(msg);
			} catch (Exception e) {
				e.printStackTrace();
				System.out.println("Issue email transportation to " + this.to);
			}
		}
	}