记得setSsl(true);我把端口号设置成了587
email.setHostName(hostName); email.setSSL(true); email.setSslSmtpPort(sslSmtpPort); email.setFrom(mailbox, mailbox); email.setAuthentication(mailbox, password); email.setSubject(title); email.setMsg(body); email.setCharset(charset); email.attach(att1); //添加收件人 for (int i = 0; i < sendAddress.length; i++) { address = sendAddress[i]; email.addTo(address); } //添加抄送人 if (bcc_Address != null) { for (String bcc: bcc_Address) { email.addCc(bcc); } } email.send();