Hi,

Office 365 servers are notorious for their slow responses. Recently I get a lot of these:

ERROR: Could not connect to SMTP host: podxxxxx.outlook.com, port: 587
javax.mail.MessagingException: Could not connect to SMTP host: podxxxxx.outlook.com, port: 587;
nested exception is:
java.net.SocketTimeoutException: connect timed out
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1934)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:638)
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.MailSender.execute(MailSender.java:117)
at hudson.tasks.Mailer.perform(Mailer.java:137)
at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:804)
at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:776)
at hudson.model.Build$BuildExecution.post2(Build.java:183)
at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:725)
at hudson.model.Run.execute(Run.java:1709)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:231)
Caused by: java.net.SocketTimeoutException: connect timed out
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:579)
at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:286)
at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:231)
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1900)
... 17 more
Finished: FAILURE

So now I'd like to increase the SMTP timeout value but apparently that's not possible as of now.

Another ugly problem is that Office 365 uses STARTTLS without SMTPS so to make mailer work I gotta hack on /etc/default/jenkins and add -Dmail.smtp.starttls.enable=true to JAVA_ARGS otherwise it won't work. (Hmm, come to think of it, timeout might also be set this way, too...)

So all I ask for is to expose the mail.smtp.connectiontimeout, mail.smtp.timeout and mail.smtp.starttls.enable properties under settings instead of always using the Java defaults.

Thanks in advance!

Viktor