javamail with OVH and Gmail - gmail

Question

I have 2 VPS on OVH. The same Spring boot app can send mail with java mail in the first VPS and the second can't. It's the same machine, same jar.
I launch the jar with root :
I already active the unsecure acces in gmail : https://myaccount.google.com/lesssecureapps
I accepte the link https://accounts.google.com/signin/continue?sarp=1&scc=1&plt=AKgnsbuM5KYYYYYYL0iffJC4Yff3i8lLM2cb8888iWhK2QqKnUwoPp8tUfG4xljMbAZd6WApxxxxD1raE_GvP0000-QOZtemF7alt9kme8Ega9xojFquexxxxxxxx
My Spring boot conf :
mail:
host: smtp.gmail.com
port: 587
username: xxx#gmail.com
password: xxxx
protocol: smtp
tls: true
properties.mail.smtp:
auth: true
starttls.enable: true
ssl.trust: smtp.gmail.com
the error in the second machine is :
serveur OK :
openjdk version "1.8.0_252"
OpenJDK Runtime Environment (build 1.8.0_252-8u252-b09-1~18.04-b09)
OpenJDK 64-Bit Server VM (build 25.252-b09, mixed mode)
root#xxxx:/tmp# cat /etc/os-release
NAME="Ubuntu"
VERSION="18.04.2 LTS (Bionic Beaver)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 18.04.2 LTS"
VERSION_ID="18.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic
serveur KO :
openjdk version "1.8.0_252"
OpenJDK Runtime Environment (build 1.8.0_252-8u252-b09-1~18.04-b09)
OpenJDK 64-Bit Server VM (build 25.252-b09, mixed mode)
VERSION="18.04.1 LTS (Bionic Beaver)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 18.04.1 LTS"
VERSION_ID="18.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic
the error in the second machine :
org.springframework.mail.MailAuthenticationException: Authentication
failed; nested exception is javax.mail.AuthenticationFailedException:
534-5.7.14
<https://accounts.google.com/signin/continue?sarp=1&scc=1&plt=AKgnsbu
534-5.7.14
M5KYYYYYYL0iffJC4Yff3i8lLM2cb8888iWhK2QqKnUwoPp8tUfG4xljMbAZd6WApxxxx
534-5.7.14 D1raE_GvP0000-QOZtemF7alt9kme8Ega9xojFquexxxxxxxx>
534-5.7.14 Please log in via your web browser and then try again.
534-5.7.14 Learn more at 534 5.7.14
https://support.google.com/mail/answer/78754 a2sm63156wrn.68 - gsmtp
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)
at fr.sadakat.api.service.MailService.sendEmail(MailService.java:141)
at
fr.sadakat.api.service.MailService.sendLienRecuFiscalByDonFromTemplate(MailService.java:193)
at
fr.sadakat.api.service.MailService.sendLienRecuFiscalByDon(MailService.java:181)
at
fr.sadakat.api.service.MailService$$FastClassBySpringCGLIB$$d7d4e9f4.invoke()
at
org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
at
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:771)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
at
org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:88)
at
fr.sadakat.api.aop.logging.LoggingAspect.logAround(LoggingAspect.java:100)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498) at
org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:644)
at
org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:633)
at
org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:70)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
at
org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:62)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
at
org.springframework.aop.interceptor.AsyncExecutionInterceptor.lambda$invoke$0(AsyncExecutionInterceptor.java:115)
at java.util.concurrent.FutureTask.run(FutureTask.java:266) at
io.github.jhipster.async.ExceptionHandlingAsyncTaskExecutor.lambda$createWrappedRunnable$1(ExceptionHandlingAsyncTaskExecutor.java:78)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748) Caused by:
javax.mail.AuthenticationFailedException: 534-5.7.14
<https://accounts.google.com/signin/continue?sarp=1&scc=1&plt=AKxxxsbu
534-5.7.14
M5KmxxxxxiffJC4Yff3i8lLM2cbeQxxxxxx8tUfG4xljMbAZd6WApK3JKDzpbQ
534-5.7.14
D1raE_GvPPS63F-QxxxxxxxxxxjFque9MQ3ExxxxxxxxDPg7Sjq2F>
534-5.7.14 Please log in via your web browser and then try again.
534-5.7.14 Learn more at 534 5.7.14
https://support.google.com/mail/answer/78754 a2sm63156wrn.68 - gsmtp
at
com.sun.mail.smtp.SMTPTransport$Authenticator.authenticate(SMTPTransport.java:947)
at
com.sun.mail.smtp.SMTPTransport.authenticate(SMTPTransport.java:858)
at
com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:762)
at javax.mail.Service.connect(Service.java:342) at
org.springframework.mail.javamail.JavaMailSenderImpl.connectTransport(JavaMailSenderImpl.java:518)
at
org.springframework.mail.javamail.JavaMailSenderImpl.doSend(JavaMailSenderImpl.java:437)
... 33 common frames omitted