smtp/mail.go
func (m *MailService) Send(message string, subject string, from string, to string) (err error) {
	t := []string{to}
	msg := []byte("From: " + from + "\r\n" +
		"To: " + to + "\r\n" +
		"Subject: " + subject + "\r\n" +
		"\r\n" +
		message + "\r\n")

	err = m.SMTP.SendMail(from, t, msg)

	return
}
func (m *MailService) Send(message string, subject string, from string, to string) (err error) {
	t := []string{to}
	msg := []byte("From: " + from + "\r\n" +
		"To: " + to + "\r\n" +
		"Subject: " + subject + "\r\n" +
		"\r\n" +
		message + "\r\n")

	err = m.SMTP.SendMail(from, t, msg)

	return
}
//Send envoie un email