Jenkins SMTP Email configuration fails verification

Question

I am using jenkins and trying to set the Email Configurations to use SMTP but it fails the verification step. I am running Jenkins on localhost:8080. in Safari. on osx mavericks.

in jenkins under the advanced settings of the email configurations I've set them as,

SMTP Server: "smtp.gmail.com" email suffix: "@gmail.com"

SMTP Authentication: YES User Name
Password
Use SSL : yes SMTP Port: 465

I've followed the support url that is offered by the error. I've already verified that my username and password is correct. I've enabled the setting that allows less secure requests to the gmail server.

I honestly do not know what else I can try to make this work.

the error is below.

javax.mail.AuthenticationFailedException: 535-5.7.8 Username and Password not accepted. Learn more at
535 5.7.8 http://support.google.com/mail/bin/answer.py?answer=14257 cw5sm7815504pbc.9 - gsmtp

    at com.sun.mail.smtp.SMTPTransport$Authenticator.authenticate(SMTPTransport.java:809)
    at com.sun.mail.smtp.SMTPTransport.authenticate(SMTPTransport.java:752)
    at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:669)
    at javax.mail.Service.connect(Service.java:317)
    at javax.mail.Service.connect(Service.java:176)
    at javax.mail.Service.connect(Service.java:125)
    at javax.mail.Transport.send0(Transport.java:194)
    at javax.mail.Transport.send(Transport.java:124)
    at hudson.tasks.Mailer$DescriptorImpl.doSendTestMail(Mailer.java:519)
    at sun.reflect.GeneratedMethodAccessor230.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:298)
    at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:161)
    at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:96)
    at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:120)
    at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)
    at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:728)
    at org.kohsuke.stapler.Stapler.invoke(Stapler.java:858)
    at org.kohsuke.stapler.MetaClass$6.doDispatch(MetaClass.java:248)
    at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53)
    at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:728)
    at org.kohsuke.stapler.Stapler.invoke(Stapler.java:858)
    at org.kohsuke.stapler.Stapler.invoke(Stapler.java:631)
    at org.kohsuke.stapler.Stapler.service(Stapler.java:225)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
    at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:686)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1494)
    at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:96)
    at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:88)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482)
    at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:48)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482)
    at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84)
    at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76)
    at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482)
    at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:46)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482)
    at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1474)
    at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:499)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
    at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:533)
    at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
    at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086)
    at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:428)
    at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
    at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
    at org.eclipse.jetty.server.Server.handle(Server.java:370)
    at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:489)
    at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:960)
    at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1021)
    at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:865)
    at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:240)
    at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
    at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:668)
    at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)
    at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
    at java.lang.Thread.run(Thread.java:695)

Answer 1

Please check the settings in your google account.

I set "Access for less secure apps" to allowed when I got the same error.

After that I was able to send mails with the settings you specified.

Answer 2

Update mailer plugin to 1.1 in Jenkins. Update jenkins to latest version. Restart. Works fine then. Updating jenkins is optional.

Answer 3

In my case, I had to perform an extra step (see point 2 below) to make it work:

1. Allow less secure app access: click https://www.google.com/settings/security/lesssecureapps and select Turn on
2. Unlock captcha: click https://accounts.google.com/DisplayUnlockCaptcha and select continue