upload.

src/send-mail-demo.js

+var mail = require('topsin.mail');
+var error = require('topsin.error'); 
+var err = mail.sendMail({
+    host:'smtp.exmail.qq.com',
+    auth_method:mail.AuthMethod.LOGIN,
+    connection_type:mail.ConnectionType.TCP,
+    from:'leon.li@topibd.com',
+    password:'mailpassword',
+    to:'leon.li@topibd.com',
+    subject:'topjs mail test title',
+    content:'topjs mail test body18'
+});
+if (err.isValid()) {
+    print(err.text());
+}
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