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POUnable to send email from google app engine
 

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    <p>I am on GAE Version 1.7.3 and using java mail api to send the email. On local development server the mail is sent fine. But after deploying to app engine i get following exception</p> <pre><code>com.google.apphosting.api.ApiProxy$CallNotFoundException: The API package 'remote_socket' or call 'Resolve()' was not found. at java.lang.Thread.getStackTrace(Thread.java:1495) at com.google.apphosting.runtime.ApiProxyImpl.doSyncCall(ApiProxyImpl.java:240) at com.google.apphosting.runtime.ApiProxyImpl.access$000(ApiProxyImpl.java:66) at com.google.apphosting.runtime.ApiProxyImpl$1.run(ApiProxyImpl.java:183) at com.google.apphosting.runtime.ApiProxyImpl$1.run(ApiProxyImpl.java:180) at java.security.AccessController.doPrivileged(Native Method) at com.google.apphosting.runtime.ApiProxyImpl.makeSyncCall(ApiProxyImpl.java:180) at com.google.apphosting.runtime.ApiProxyImpl.makeSyncCall(ApiProxyImpl.java:66) at com.google.apphosting.api.ApiProxy.makeSyncCall(ApiProxy.java:107) at com.google.apphosting.api.ApiProxy.makeSyncCall(ApiProxy.java:56) at com.google.appengine.api.socket.SocketApiHelper.apiProxyMakeSyncCall(SocketApiHelper.java:90) at com.google.appengine.api.socket.SocketApiHelper.makeSyncCall(SocketApiHelper.java:58) at com.google.appengine.api.socket.NameServiceImpl.lookupAllHostAddr(NameServiceImpl.java:61) at com.google.apphosting.util.ResolverManager$AppEngineNameservice.lookupAllHostAddr(ResolverManager.java:42) at java.net.InetAddress.getAddressFromNameService(InetAddress.java:1353) at java.net.InetAddress.getAllByName0(InetAddress.java:1303) at java.net.InetAddress.getAllByName(InetAddress.java:1232) at java.net.InetAddress.getAllByName(InetAddress.java:1163) at java.net.InetAddress.getByName(InetAddress.java:1113) at javax.mail.Service.connect(Service.java:257) at javax.mail.Service.connect(Service.java:91) at javax.mail.Service.connect(Service.java:76) at javax.mail.Transport.send(Transport.java:94) at javax.mail.Transport.send(Transport.java:48) at com.test.igreetings.service.impl.EmailImpl.sendEmail(EmailImpl.java:61) </code></pre> <p>Here is the my code to send the email:</p> <pre><code>try { // Email is my custom pojo class Email email = new Email(); email.setMailHost("smtp.gmail.com"); email.setAuth("true"); email.setFrom("username@gmail.com"); email.setTo("targetemail@example.com"); email.setSubject("test); email.setMessage("test body"); email.setPort("25"); email.setStarttls("true"); email.setLogin("username@gmail.com"); email.setPassword("pwd"); Properties props = new Properties(); props.setProperty("mail.host", email.getMailHost()); props.setProperty("mail.smtp.port", email.getPort()); props.setProperty("mail.smtp.auth", email.getAuth()); props.setProperty("mail.smtp.starttls.enable", email.getStarttls()); Authenticator auth = new SMTPAuthenticator(email.getLogin(), email.getPassword()); Session session = Session.getInstance(props, auth); MimeMessage msg = new MimeMessage(session); msg.setText(email.getMessage()); msg.setSubject(email.getSubject()); msg.setFrom(new InternetAddress(email.getFrom())); msg.addRecipient(Message.RecipientType.TO, new InternetAddress(email.getTo())); Transport transport = session.getTransport("smtp"); transport.connect(email.getMailHost(), 25, "username@gmail.com", "pwd"); transport.sendMessage(msg, msg.getAllRecipients()); transport.close(); } catch (AuthenticationFailedException ex) { Logging.log("AuthenticationFailedException in sendEmail: " + ex.toString()); ex.printStackTrace(); } catch (AddressException ex) { Logging.log("AddressException in sendEmail: " + ex.toString()); ex.printStackTrace(); } catch (MessagingException ex) { Logging.log("MessagingException in sendEmail: " + ex.toString()); ex.printStackTrace(); } </code></pre> <h2>EDIT:</h2> <p>I have changed code per your suggestion and here is my updated code:</p> <pre><code>Properties props = new Properties(); Session session = Session.getDefaultInstance(props, null); Message msg = new MimeMessage(session); msg.setFrom(new InternetAddress("username@gmail.com")); msg.addRecipient(Message.RecipientType.TO, new InternetAddress("targetemail@example.com")); msg.setSubject("test"); msg.setText("test"); Transport.send(msg); </code></pre> <p>And i am getting similar exception The API package 'remote_socket' or call 'CreateSocket()' was not found. The above sender is also registered as developer of this application.</p>
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