i used java mail api to send mails. the code is a s below javax.mail.Session mailSession=(javax.mail.Session)ctx.lookup("java:/Mail"); mailSession.setDebug(false); javax.mail.Message msg = new javax.mail.internet.MimeMessage(mailSession); msg.addRecipients(javax.mail.Message.RecipientType.TO, addressToArr); msg.setSubject(mailSubject); msg.setContent(mailBody, contentType); javax.mail.Transport.send(msg); But if there is an invalid address in the recipient address array, the email won't sent to the correct addresses as well. i just want to know whther it happens any coding issues    More>>