javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 25;

Question

The Code I\'m Using to send a simple mail

import javax.mail.*;
import javax.mail.internet.*;
import java.util.*;
import java.io.*;
import javax.activation.Da         


        

Answer 1

Sounds like a firewall problem (firewalls silently drop packets that are not allowed, which is why you would be seeing a Connection Timeout.

Can you try

H:\> telnet smtp.gmail.com 25
Connecting To smtp.gmail.com...Could not open connection to the host, on port 25
: Connect failed

on your server and see whether you get a connection? (I'm behind a firewall here that does not allow connections to gmail)