How to check mail address is exists or not?

Question

I am sending email through Java using com.sun.mail.smtp.SMTPTransport.

I am successful to send the email, but SMTPTransport not giv

Answer 1

Thank you all for your responses.

I am able to solve my problem through MX Record checking .

I used this Link to resolve the problem. May this also be useful for someone.

Hashtable env = new Hashtable();
env.put("java.naming.factory.initial",
             "com.sun.jndi.dns.DnsContextFactory");
DirContext ictx = new InitialDirContext( env );
Attributes attrs = ictx.getAttributes
                       ( hostName, new String[] { "MX" });
Attribute attr = attrs.get( "MX" );
if (( attr == null ) || ( attr.size() == 0 )) {
   attrs = ictx.getAttributes( hostName, new String[] { "A" });
   attr = attrs.get( "A" );
   if( attr == null )
         throw new NamingException
                  ( "No match for name '" + hostName + "'" );
}

Thank you.