Problem to Sent emails using Java

Hello,

I am using following properties to send a mail using Java programming :

Properties prop = System.getProperties();

prop.put("mail.smtp.auth", "true");

prop.setProperty("mail.pop3.socketFactory.class","javax.net.ssl.SSLSocketFactory");

prop.setProperty("mail.smtp.socketFactory.class","javax.net.ssl.SSLSocketFactory");

prop.setProperty("mail.smtp.socketFactory.fallback","false");

prop.setProperty("mail.smtp.socketFactory.port","465");

prop.put("mail.smtp.startssl.enable", "true");

prop.put("mail.smtp.host", "smtp.zoho.com");

prop.put("mail.smtp.port", "465");

The email username and pwd are set correctly. The error is - "Relaying disallowed as username"

The run results in following debug trace :

*************************************************************************************

DEBUG: JavaMail version 1.5.5

DEBUG: successfully loaded resource: /META-INF/javamail.default.providers

DEBUG: Tables of loaded providers

DEBUG: Providers Listed By Class Name: {com.sun.mail.smtp.SMTPSSLTransport=javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Oracle], com.sun.mail.smtp.SMTPTransport=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Oracle], com.sun.mail.imap.IMAPSSLStore=javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Oracle], com.sun.mail.pop3.POP3SSLStore=javax.mail.Provider[STORE,pop3s,com.sun.mail.pop3.POP3SSLStore,Oracle], com.sun.mail.imap.IMAPStore=javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Oracle], com.sun.mail.pop3.POP3Store=javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Oracle]}

DEBUG: Providers Listed By Protocol: {imaps=javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Oracle], imap=javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Oracle], smtps=javax.mail.Provider[TRANSPORT,smtps,com.sun.mail.smtp.SMTPSSLTransport,Oracle], pop3=javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Oracle], pop3s=javax.mail.Provider[STORE,pop3s,com.sun.mail.pop3.POP3SSLStore,Oracle], smtp=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Oracle]}

DEBUG: successfully loaded resource: /META-INF/javamail.default.address.map

DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Oracle]

DEBUG SMTP: need username and password for authentication

DEBUG SMTP: useEhlo true, useAuth true

DEBUG SMTP: trying to connect to host "smtp.zoho.com", port 465, isSSL false

220 mx.zohomail.com SMTP Server ready August 3, 2016 3:09:44 AM PDT

DEBUG SMTP: connected to host "smtp.zoho.com", port: 465

EHLO Lenovo-PC

250-mx.zohomail.com Hello Lenovo-PC (115.118.242.137 (115.118.242.137))

250-AUTH LOGIN PLAIN

250 SIZE 53477376

DEBUG SMTP: Found extension "AUTH", arg "LOGIN PLAIN"

DEBUG SMTP: Found extension "SIZE", arg "53477376"

DEBUG SMTP: Attempt to authenticate using mechanisms: LOGIN PLAIN DIGEST-MD5 NTLM XOAUTH2

DEBUG SMTP: Using mechanism LOGIN

DEBUG SMTP: AUTH LOGIN command trace suppressed

DEBUG SMTP: AUTH LOGIN succeeded

DEBUG SMTP: use8bit false

MAIL FROM:<username>

250 Sender <username> OK

RCPT TO:< someuser@gmail.com>

250 Recipient < someuser@gmail.com> OK

DEBUG SMTP: Verified Addresses

DEBUG SMTP: someuser@gmail.com

DATA

354 Ok Send data ending with <CRLF>.<CRLF>

From: username

To: someuser@gmail.com

Message-ID: <251913517.0.1470218983038@Lenovo-PC>

Subject: Modify

MIME-Version: 1.0

Content-Type: text/plain; charset=us-ascii

Content-Transfer-Encoding: 7bit

Modify

553 Relaying disallowed as username

DEBUG SMTP: got response code 553, with response: 553 Relaying disallowed as username

RSET

DEBUG SMTP: EOF: [EOF]

DEBUG SMTP: MessagingException while sending, THROW:

com.sun.mail.smtp.SMTPSendFailedException: 553 Relaying disallowed as username

at com.sun.mail.smtp.SMTPTransport.issueSendCommand(SMTPTransport.java:2249)

....

.....

*****************************************************************************************************************

Kindly suggest a solution,

Best Regards,