在我们的生产服务器上遇到此错误（当然，测试服务器上仍有问题）但电子邮件已停止发送。
Email error: Invalid Addresses
javax.mail.SendFailedException: Invalid Addresses;
nested exception is:
com.sun.mail.smtp.SMTPAddressFailedException: 501 Invalid RCPT TO address provided
at com.sun.mail.smtp.SMTPTransport.rcptTo(SMTPTransport.java:1862)
at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1118)
at javax.mail.Transport.send0(Transport.java:254)
at javax.mail.Transport.send(Transport.java:124)
我在一些常用代码中添加了一些调试：
MimeMessage message = new MimeMessage(session);
message.setFrom(new InternetAddress(fromEmail));
InternetAddress[] toAddrs = InternetAddress.parse(email);
System.out.println("Setting TO Recipient to " + email);
for( InternetAddress ia : toAddrs ){
System.out.println(" InternetAddress: " + ia.toString());
}
message.setRecipients(Message.RecipientType.TO, toAddrs);
...
...
Transport.send(message);
} catch (SendFailedException sfe) {
Address[] invalidAddrs = sfe.getInvalidAddresses();
System.out.println("[EmailHelper] SendFailedException: " + sfe.getMessage() + " -- " + InternetAddress.toString(sfe.getInvalidAddresses()));
System.out.println("-- end SendFailedInspection\n");
}
我看到的输出令人费解（电子邮件地址已更改）：
Setting TO Recipient to clay@clay.com
InternetAddress: clay@clay.com
[EmailHelper] SendFailedException: Invalid Addresses -- apple
-- end SendFailedInspection
我的意思是，字面意思是“苹果”！
我在MacOX上构建JAR并部署到Amazon Linux。这是“苹果”的来源吗？我将SMTP消息发送到AWS Simple Email Service（在我们的其他服务上可以正常工作）。
此代码已经工作了几个月，但它似乎在一夜之间发生了变化（可能与yum update有关。）
无论如何，如果你有任何想法，这很奇怪。谢谢！
编辑 JavaMail调试信息（个人资料编辑）：
04/12/2018 14:12:59 : 571449 Send Note with Reports to clay@clay.com Failed
DEBUG: setDebug: JavaMail version 1.5.0
Setting TO Recipient to clay@clay.com
InternetAddress: clay@clay.com
DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Oracle]
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: trying to connect to host "email-host-aws.com", port 25, isSSL false
220 email-smtp.amazonaws.com ESMTP SimpleEmailService-2762711029 LtFXRutjiksFKUW
DEBUG SMTP: connected to host "email-host-aws.com", port: 465
EHLO ip-172-31-58-4.ec2.internal
250-email-smtp.amazonaws.com
250-8BITMIME
250-SIZE 10485760
250-AUTH PLAIN LOGIN
250 Ok
DEBUG SMTP: Found extension "8BITMIME", arg ""
DEBUG SMTP: Found extension "SIZE", arg "10485760"
DEBUG SMTP: Found extension "AUTH", arg "PLAIN LOGIN"
DEBUG SMTP: Found extension "Ok", arg ""
DEBUG SMTP: Attempt to authenticate using mechanisms: LOGIN PLAIN DIGEST-MD5 NTLM
DEBUG SMTP: AUTH LOGIN command trace suppressed
DEBUG SMTP: AUTH LOGIN succeeded
DEBUG SMTP: use8bit false
MAIL FROM:<clay@clay.com>
250 Ok
RCPT TO:<clay@clay.com>
250 Ok
RCPT TO:<apple>
501 Invalid RCPT TO address provided
DEBUG SMTP: Valid Unsent Addresses
DEBUG SMTP: clay@clay.com
DEBUG SMTP: Invalid Addresses
DEBUG SMTP: apple
DEBUG SMTP: Sending failed because of invalid destination addresses
RSET
250 Ok
DEBUG SMTP: MessagingException while sending, THROW:
javax.mail.SendFailedException: Invalid Addresses;
nested exception is:
com.sun.mail.smtp.SMTPAddressFailedException: 501 Invalid RCPT TO address provided
at com.sun.mail.smtp.SMTPTransport.rcptTo(SMTPTransport.java:1862)
at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1118)
at javax.mail.Transport.send0(Transport.java:254)
at javax.mail.Transport.send(Transport.java:124)
...
Caused by: com.sun.mail.smtp.SMTPAddressFailedException: 501 Invalid RCPT TO address provided
at com.sun.mail.smtp.SMTPTransport.rcptTo(SMTPTransport.java:1715)
... 7 more
QUIT
221 Bye
“RCPT TO：”来自哪里？这是什么？