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济南网站优化收费,wordpress 去掉超链接,做资金盘网站违法吗,wordpress 直播网站问题出现情况邮件发送时debug用F8逐步运行可以成功发送邮件，但是用F9或者直接运行程序却发送失败未开启mail的debug模式的报错日志是下面这个：org.springframework.mail.MailAuthenticationException: Authentication failed; nested exception is java…

问题出现情况

  邮件发送时debug用F8逐步运行可以成功发送邮件，但是用F9或者直接运行程序却发送失败未开启mail的debug模式的报错日志是下面这个：

org.springframework.mail.MailAuthenticationException: Authentication failed; nested exception is javax.mail.AuthenticationFailedException: [EOF]at org.springframework.mail.javamail.JavaMailSenderImpl.doSend(JavaMailSenderImpl.java:440)at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:361)at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:356)

  开启了mail的debug日志，然后之前忘了添加超时设置，后续添加了下面超时设置

spring:#JavaMailSendermail:host: smtp.exmail.qq.comport: 587username: xxx@xxx.compassword: xxxdefault-encoding: UTF-8properties:mail.smtp.starttls.enable: truemail.smtp.timeout: 5000 # 设置连接超时（毫秒）后面加的mail.smtp.connectiontimeout: 5000 # 设置连接超时（毫秒）后面加的mail.smtp.writetimeout: 5000 # 设置写入超时（毫秒）后面加的

  之后发现是卡在了权限验证AUTH LOGIN，然后无法进行下一步，直到超时，日志如下：

DEBUG SMTP: exception reading response, THROW: 
java.net.SocketTimeoutException: Read timed outat java.net.SocketInputStream.socketRead0(Native Method)at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)at java.net.SocketInputStream.read(SocketInputStream.java:171)at java.net.SocketInputStream.read(SocketInputStream.java:141)at sun.security.ssl.SSLSocketInputRecord.read(SSLSocketInputRecord.java:475)at sun.security.ssl.SSLSocketInputRecord.readHeader(SSLSocketInputRecord.java:469)at sun.security.ssl.SSLSocketInputRecord.bytesInCompletePacket(SSLSocketInputRecord.java:69)at sun.security.ssl.SSLSocketImpl.readApplicationRecord(SSLSocketImpl.java:1271)at sun.security.ssl.SSLSocketImpl.access$300(SSLSocketImpl.java:76)at sun.security.ssl.SSLSocketImpl$AppInputStream.read(SSLSocketImpl.java:948)at com.sun.mail.util.TraceInputStream.read(TraceInputStream.java:126)at java.io.BufferedInputStream.fill(BufferedInputStream.java:246)at java.io.BufferedInputStream.read(BufferedInputStream.java:265)at com.sun.mail.util.LineInputStream.readLine(LineInputStream.java:106)at com.sun.mail.smtp.SMTPTransport.readServerResponse(SMTPTransport.java:2440)at com.sun.mail.smtp.SMTPTransport.ehlo(SMTPTransport.java:1699)at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:759)at javax.mail.Service.connect(Service.java:366)at org.springframework.mail.javamail.JavaMailSenderImpl.connectTransport(JavaMailSenderImpl.java:518)at org.springframework.mail.javamail.JavaMailSenderImpl.doSend(JavaMailSenderImpl.java:437)at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:361)at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:356)at com.example.demo.mail.MailServiceImpl.send(MailServiceImpl.java:95)at com.example.demo.mail.MailServiceImpl.send(MailServiceImpl.java:108)at com.example.demo.schedule.MyRunner.run(MyRunner.java:20)at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:781)at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:765)at org.springframework.boot.SpringApplication.run(SpringApplication.java:319)at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215)at org.springframework.boot.SpringApplication.run(SpringApplication.java:1204)

问题解决过程

  在debug过程中发现是在TLS握手时超时导致的权限验证失败，在项目启动时添加：

-Djavax.net.debug=ssl:handshake

添加后查看日志，ServerHello返回的版本是TLSv1.2，但是指定通信的版本是TLSv1.3，成功的日志指定的也是1.3，我尝试配置指定TLS版本为v1.2后发现问题成功解决：

spring:mail:host: smtp.exmail.qq.comport: 587username: xxx@xxx.compassword: xxxdefault-encoding: UTF-8properties:mail.smtp.starttls.enable: truemail.smtp.starttls.required: truemail.smtp.ssl.protocols: TLSv1.2mail.smtp.auth: truemail.smtp.timeout: 5000 # 设置连接超时（毫秒）mail.smtp.connectiontimeout: 5000 # 设置连接超时（毫秒）mail.smtp.writetimeout: 5000 # 设置写入超时（毫秒）

后续我通过openssl命令行执行查看server的TLS版本发现是支持v1.3的：

admin@DESKTOP-0SP0F5T MINGW64 ~/Desktop
$ openssl s_client -starttls smtp -crlf -connect smtp.exmail.qq.com:587
Connecting to 119.147.6.199
CONNECTED(00000250)
depth=2 C=US, O=DigiCert Inc, OU=www.digicert.com, CN=DigiCert Global Root CA
verify return:1
depth=1 C=US, O=DigiCert Inc, CN=DigiCert Secure Site CN CA G3
verify return:1
depth=0 C=CN, ST=Guangdong Province, L=Shenzhen, O=Tencent Technology (Shenzhen) Company Limited, CN=*.exmail.qq.com
verify return:1
...省略
No client certificate CA names sent
Peer signing digest: SHA256
Peer signature type: RSA-PSS
Server Temp Key: X25519, 253 bits
---
SSL handshake has read 3871 bytes and written 446 bytes
Verification: OK
---
New, TLSv1.3, Cipher is TLS_AES_256_GCM_SHA384
...省略
---
250 8BITMIME
---
Post-Handshake New Session Ticket arrived:
SSL-Session:Protocol  : TLSv1.3Cipher    : TLS_AES_256_GCM_SHA384
...省略

然而通过ssl-tool在线验证却发现不支持，可自行点击超链接查看
问了chatgpt发现也是：
在这里插入图片描述
所以最后解决方法是指定了TLS版本

补充

项目用的是JDK1.8，SpringBoot版本是2.1.8.RELEASE，后续使用了JDK17，SpringBoot版本3.3.4问题依旧，而且F8调试的不会报错，但是指定了TLS版本的方法虽然成功发送了邮件，但是socket已关闭然后报错。如下：

221 Bye
发送邮件完毕...
2024-10-12 14:04:16.696  INFO 30640 --- [       Thread-2] o.s.s.concurrent.ThreadPoolTaskExecutor  : Shutting down ExecutorService 'applicationTaskExecutor'
javax.net.ssl|FINE|01|main|2024-10-12 14:04:16.690 GMT+08:00|SSLSocketImpl.java:497|duplex close of SSLSocket
javax.net.ssl|FINE|01|main|2024-10-12 14:04:16.692 GMT+08:00|SSLSocketImpl.java:1551|close the underlying socket
javax.net.ssl|FINE|01|main|2024-10-12 14:04:16.692 GMT+08:00|SSLSocketImpl.java:1570|close the SSL connection (initiative)
javax.net.ssl|FINE|01|main|2024-10-12 14:04:16.692 GMT+08:00|SSLSocketImpl.java:755|close inbound of SSLSocket
javax.net.ssl|WARNING|01|main|2024-10-12 14:04:16.693 GMT+08:00|SSLSocketImpl.java:515|SSLSocket duplex close failed (
"throwable" : {java.net.SocketException: Socket is closedat java.net.Socket.shutdownInput(Socket.java:1538)at com.sun.mail.util.WriteTimeoutSocket.shutdownInput(WriteTimeoutSocket.java:281)at sun.security.ssl.BaseSSLSocketImpl.shutdownInput(BaseSSLSocketImpl.java:218)at sun.security.ssl.SSLSocketImpl.shutdownInput(SSLSocketImpl.java:771)at sun.security.ssl.SSLSocketImpl.bruteForceCloseInput(SSLSocketImpl.java:720)at sun.security.ssl.SSLSocketImpl.duplexCloseOutput(SSLSocketImpl.java:580)at sun.security.ssl.SSLSocketImpl.close(SSLSocketImpl.java:504)at com.sun.mail.smtp.SMTPTransport.closeConnection(SMTPTransport.java:1425)at com.sun.mail.smtp.SMTPTransport.close(SMTPTransport.java:1418)at org.springframework.mail.javamail.JavaMailSenderImpl.doSend(JavaMailSenderImpl.java:476)at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:361)at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:356)at com.example.demo.mail.MailServiceImpl.send(MailServiceImpl.java:95)at com.example.demo.mail.MailServiceImpl.send(MailServiceImpl.java:105)at com.example.demo.schedule.MyRunner.run(MyRunner.java:20)at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:781)at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:765)at org.springframework.boot.SpringApplication.run(SpringApplication.java:319)at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215)at org.springframework.boot.SpringApplication.run(SpringApplication.java:1204)