このJavaサービスをラップトップ(Windows 10)または開発サーバー(CentOS)で実行すると、すべて期待どおりに機能します。ただし、ライブサーバー(CentOS)で実行すると、次のエラーが発生します。 :
09/Sep/2016 08:31:07,005 [ERROR] [pool-2-thread-2] - EmailSender: A Messaging exception occurred in EmailSender
javax.mail.MessagingException: [EOF]
at com.Sun.mail.smtp.SMTPTransport.issueCommand(SMTPTransport.Java:1363) ~[jar:rsrc:mail-1.4.jar!/:?]
at com.Sun.mail.smtp.SMTPTransport.helo(SMTPTransport.Java:838) ~[jar:rsrc:mail-1.4.jar!/:?]
at com.Sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.Java:375) ~[jar:rsrc:mail-1.4.jar!/:?]
at javax.mail.Service.connect(Service.Java:275) ~[jar:rsrc:mail-1.4.jar!/:?]
at javax.mail.Service.connect(Service.Java:156) ~[jar:rsrc:mail-1.4.jar!/:?]
at com.awesomecompany.messaging.server.EmailSender.sendEmail(EmailSender.Java:99) [rsrc:./:?]
at com.awesomecompany.messaging.server.MonitorDevicesRunnable.run(MonitorDevicesRunnable.Java:82) [rsrc:./:?]
at Java.util.concurrent.Executors$RunnableAdapter.call(Executors.Java:471) [?:1.7.0_75]
at Java.util.concurrent.FutureTask.runAndReset(FutureTask.Java:304) [?:1.7.0_75]
at Java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.Java:178) [?:1.7.0_75]
at Java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.Java:293) [?:1.7.0_75]
at Java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.Java:1145) [?:1.7.0_75]
at Java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.Java:615) [?:1.7.0_75]
at Java.lang.Thread.run(Thread.Java:745) [?:1.7.0_75]
私のメールコード:
public void sendEmail(User user) {
to[0] = user.getEmail();
Properties props = new Properties();
props.put("mail.smtp.Host", Host);
props.put("mail.smtp.user", from);
props.put("mail.smtp.password", password);
props.put("mail.smtp.port", "587");
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.debug", "true");
props.put("mail.store.protocol", "imap");
subject = user.getEmailBuilder().getEmailSubject();
try {
Session session = Session.getDefaultInstance(props,
new Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(from,
password);
}
});
MimeMessage message = new MimeMessage(session) {
protected void updateMessageID() throws MessagingException {
if (getHeader("Message-ID") == null)
super.updateMessageID();
}
};
message.setFrom(new InternetAddress(from));
InternetAddress[] to_addresses = new InternetAddress[to.length];
for (int i = 0; i < to.length; i++) {
to_addresses[i] = new InternetAddress(to[i]);
}
message.addRecipients(javax.mail.Message.RecipientType.TO,
to_addresses);
String messageHtml = user.getEmailMessage();
message.setSubject(subject);
message.setContent(messageHtml, "text/html;charset=UTF-8;");
message.saveChanges();
user.setEmailMessageId(message.getMessageID());
log.info("Email message ID: " + message.getMessageID());
Transport transport = session.getTransport("smtp");
transport.connect(Host, from, password);
transport.sendMessage(message, message.getAllRecipients());
transport.close();
user.setEmailStatus(DistinctNotification.STATUS_SENT);
} catch (AddressException e) {
log.error("An AddressException occurred in EmailSender", e);
user.setEmailStatus(DistinctNotification.STATUS_READY);
} catch (MessagingException e) {
log.error("A Messaging exception occurred in EmailSender", e);
user.setEmailStatus(DistinctNotification.STATUS_READY);
}
}
エラーは次の行で発生します:
transport.connect(Host, from, password);
編集:
私は、おそらく数か月前に、事実が機能したことを知っている以前のビルドに戻しました。動作しなくなり、同じエラーが発生します。
サーバーにアクセスできる他の同僚は、サーバーに変更を加えていないと述べています。
これでどこへ行けばいいのか全く分かりません。 Telnetを使用してGoogleサーバーに接続しても問題ありません。念のため、さまざまなポートでさらにチェックを行いますが、それは問題ではありません。 編集2:
ここに問題があります:501-5.5.4 Empty HELO/EHLO argument not allowed, closing connection.
しかし、これが1つのサーバーでのみ発生するのはなぜですか?
コンソールからの追加のログ:
DEBUG SMTP: connected to Host "smtp.gmail.com", port: 587
EHLO
501-5.5.4 Empty HELO/EHLO argument not allowed, closing connection.
501 5.5.4 https://support.google.com/mail/?p=helo l10sm686448lfd.19 - gsmtp
HELO
DEBUG SMTP: EOF: [EOF]
09:07:00.277 [pool-2-thread-1] - A Messaging exception occurred in EmailSender
javax.mail.MessagingException: [EOF]
at com.Sun.mail.smtp.SMTPTransport.issueCommand(SMTPTransport.Java:1363) ~[jar:rsrc:mail-1.4.jar!/:?]
at com.Sun.mail.smtp.SMTPTransport.helo(SMTPTransport.Java:838) ~[jar:rsrc:mail-1.4.jar!/:?]
at com.Sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.Java:375) ~[jar:rsrc:mail-1.4.jar!/:?]
at javax.mail.Service.connect(Service.Java:275) ~[jar:rsrc:mail-1.4.jar!/:?]
at javax.mail.Service.connect(Service.Java:156) ~[jar:rsrc:mail-1.4.jar!/:?]
at com.watersprint.messaging.server.EmailSender.sendEmail(EmailSender.Java:99) [rsrc:./:?]
at com.watersprint.messaging.server.MonitorDevicesRunnable.run(MonitorDevicesRunnable.Java:82) [rsrc:./:?]
at Java.util.concurrent.Executors$RunnableAdapter.call(Executors.Java:471) [?:1.7.0_75]
at Java.util.concurrent.FutureTask.runAndReset(FutureTask.Java:304) [?:1.7.0_75]
at Java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.Java:178) [?:1.7.0_75]
at Java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.Java:293) [?:1.7.0_75]
at Java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.Java:1145) [?:1.7.0_75]
at Java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.Java:615) [?:1.7.0_75]
at Java.lang.Thread.run(Thread.Java:745) [?:1.7.0_75]
2016-09-15 09:07:00,760 ERROR Error occurred while sending e-mail notification. javax.mail.MessagingException: [EOF]
at com.Sun.mail.smtp.SMTPTransport.issueCommand(SMTPTransport.Java:1363)
at com.Sun.mail.smtp.SMTPTransport.helo(SMTPTransport.Java:838)
at com.Sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.Java:375)
at javax.mail.Service.connect(Service.Java:297)
at javax.mail.Service.connect(Service.Java:156)
at javax.mail.Service.connect(Service.Java:105)
at javax.mail.Transport.send0(Transport.Java:168)
at javax.mail.Transport.send(Transport.Java:98)
at org.Apache.logging.log4j.core.net.SmtpManager.sendMultipartMessage(SmtpManager.Java:241)
at org.Apache.logging.log4j.core.net.SmtpManager.sendEvents(SmtpManager.Java:150)
at org.Apache.logging.log4j.core.appender.SmtpAppender.append(SmtpAppender.Java:173)
at org.Apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.Java:99)
at org.Apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.Java:430)
at org.Apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.Java:409)
at org.Apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.Java:367)
at org.Apache.logging.log4j.core.Logger.logMessage(Logger.Java:112)
at org.Apache.logging.log4j.spi.AbstractLogger.logMessage(AbstractLogger.Java:727)
at org.Apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.Java:716)
at org.Apache.logging.log4j.spi.AbstractLogger.error(AbstractLogger.Java:354)
at com.watersprint.messaging.server.EmailSender.sendEmail(EmailSender.Java:110)
at com.watersprint.messaging.server.MonitorDevicesRunnable.run(MonitorDevicesRunnable.Java:82)
at Java.util.concurrent.Executors$RunnableAdapter.call(Executors.Java:471)
at Java.util.concurrent.FutureTask.runAndReset(FutureTask.Java:304)
at Java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.Java:178)
at Java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.Java:293)
at Java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.Java:1145)
at Java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.Java:615)
at Java.lang.Thread.run(Thread.Java:745)
2016-09-15 09:07:00,762 ERROR An exception occurred processing Appender SMTPAppender org.Apache.logging.log4j.LoggingException: Error occurred while sending email
at org.Apache.logging.log4j.core.net.SmtpManager.sendEvents(SmtpManager.Java:153)
at org.Apache.logging.log4j.core.appender.SmtpAppender.append(SmtpAppender.Java:173)
at org.Apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.Java:99)
at org.Apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.Java:430)
at org.Apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.Java:409)
at org.Apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.Java:367)
at org.Apache.logging.log4j.core.Logger.logMessage(Logger.Java:112)
at org.Apache.logging.log4j.spi.AbstractLogger.logMessage(AbstractLogger.Java:727)
at org.Apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.Java:716)
at org.Apache.logging.log4j.spi.AbstractLogger.error(AbstractLogger.Java:354)
at com.watersprint.messaging.server.EmailSender.sendEmail(EmailSender.Java:110)
at com.watersprint.messaging.server.MonitorDevicesRunnable.run(MonitorDevicesRunnable.Java:82)
at Java.util.concurrent.Executors$RunnableAdapter.call(Executors.Java:471)
at Java.util.concurrent.FutureTask.runAndReset(FutureTask.Java:304)
at Java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.Java:178)
at Java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.Java:293)
at Java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.Java:1145)
at Java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.Java:615)
at Java.lang.Thread.run(Thread.Java:745)
Caused by: javax.mail.MessagingException: [EOF]
at com.Sun.mail.smtp.SMTPTransport.issueCommand(SMTPTransport.Java:1363)
at com.Sun.mail.smtp.SMTPTransport.helo(SMTPTransport.Java:838)
at com.Sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.Java:375)
at javax.mail.Service.connect(Service.Java:297)
at javax.mail.Service.connect(Service.Java:156)
at javax.mail.Service.connect(Service.Java:105)
at javax.mail.Transport.send0(Transport.Java:168)
at javax.mail.Transport.send(Transport.Java:98)
at org.Apache.logging.log4j.core.net.SmtpManager.sendMultipartMessage(SmtpManager.Java:241)
at org.Apache.logging.log4j.core.net.SmtpManager.sendEvents(SmtpManager.Java:150)
... 18 more
サーバー$HOSTNAME
が/etc/hosts
から削除されました。その結果、Googleサーバーはホスト名としてnull
または空の値を受け取り、接続を拒否しました。