I am trying to send an email from my app. Here is some code:
String text = editText.getText().toString();
String to = "to@gmail.com";
String from = "from@gmail.com";
String host = "localhost";
Properties properties = System.getProperties();
properties.setProperty("mail.smtp.host", host);
Session session = Session.getDefaultInstance(properties);
try {
MimeMessage message = new MimeMessage(session);
message.setFrom(new InternetAddress(from));
message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));
message.setSubject("Answer to your feedback");
message.setText(text);
Transport.send(message);
} catch (MessagingException mex){
mex.printStackTrace();
}
But i get an exception:
Caused by: java.lang.reflect.InvocationTargetException at java.lang.reflect.Method.invoke(Native Method) at androidx.appcompat.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:397) at android.view.View.performClick(View.java:7189) at android.view.View.performClickInternal(View.java:7163) at android.view.View.access$3500(View.java:821) at android.view.View$PerformClick.run(View.java:27579) at android.os.Handler.handleCallback(Handler.java:888) at android.os.Handler.dispatchMessage(Handler.java:100) at android.os.Looper.loop(Looper.java:213) at android.app.ActivityThread.main(ActivityThread.java:8147) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:513) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1101) Caused by: android.os.NetworkOnMainThreadException at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1565) at java.net.Inet6AddressImpl.lookupHostByName(Inet6AddressImpl.java:115) at java.net.Inet6AddressImpl.lookupAllHostAddr(Inet6AddressImpl.java:103) at java.net.InetAddress.getLocalHost(InetAddress.java:1488) at javax.mail.internet.InternetAddress.getLocalAddress(InternetAddress.java:517) at javax.mail.internet.UniqueValue.getUniqueMessageIDValue(UniqueValue.java:99) at javax.mail.internet.MimeMessage.updateMessageID(MimeMessage.java:2054) at javax.mail.internet.MimeMessage.updateHeaders(MimeMessage.java:2076) at javax.mail.internet.MimeMessage.saveChanges(MimeMessage.java:2042) at javax.mail.Transport.send(Transport.java:117)
Didn't find anything helpful. How can i fix it?
