How find out properties of mail session

To find out the properties of a mail session in Java, you can use the Session object returned by the Session class. Here are some common properties you can retrieve:

Session ID: getSessionId(): Returns the unique identifier of the session.
Session Name: getSessionName(): Returns the name of the session.
Session Type: getSessionType(): Returns the type of the session (e.g., "SMTP", "POP3", etc.).
Host: getHost(): Returns the hostname or IP address of the mail server.
Port: getPort(): Returns the port number used for the mail session.
Username: getUsername(): Returns the username used to authenticate with the mail server.
Password: getPassword(): Returns the password used to authenticate with the mail server.
Protocol: getProtocol(): Returns the protocol used for the mail session (e.g., "TLS", "SSL", etc.).
Auth: getAuth(): Returns the authentication mechanism used for the mail session (e.g., "PLAIN", "LOGIN", etc.).
Debug: getDebug(): Returns a boolean indicating whether debug mode is enabled for the mail session.

Here's an example code snippet that demonstrates how to retrieve some of these properties:

import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;

// Create a mail session
Session session = Session.getDefaultInstance(new Properties(), null);

// Retrieve some properties
String sessionId = session.getSessionId();
String sessionName = session.getSessionName();
String host = session.getHost();
int port = session.getPort();
String username = session.getUsername();
String password = session.getPassword();
String protocol = session.getProtocol();
String auth = session.getAuth();

System.out.println("Session ID: " + sessionId);
System.out.println("Session Name: " + sessionName);
System.out.println("Host: " + host);
System.out.println("Port: " + port);
System.out.println("Username: " + username);
System.out.println("Password: " + password);
System.out.println("Protocol: " + protocol);
System.out.println("Auth: " + auth);

Note that some of these properties may not be available or may be null if the mail session is not properly configured or if the mail server does not provide the necessary information.

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How find out properties of mail session