IMAPS not working

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demadesII
Posts: 3
Joined: Tue May 23, 2017 9:20 pm

IMAPS not working

Postby demadesII » Tue May 23, 2017 9:30 pm

Hello,

I have a Zimbra 8.6.0_GA_1153 (build 20141215151110) installation. I'm trying to configure IMAPs (with encryption), but it's rejecting the connection. I see the following error message in /opt/zimbra/log/mailbox.log:
2017-05-23 22:48:49,512 WARN [NioProcessor-7] [] DefaultExceptionMonitor - Unexpected exception.
org.apache.mina.core.filterchain.IoFilterLifeCycleException: onPreAdd(): ssl:ZimbraSslFilter in (0x000000F9: nio socket, server, /xxx.xxx.xxx.xxx:33198 => /xxx.xxx.xxx.xxx:993)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.register(DefaultIoFilterChain.java:279)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.addLast(DefaultIoFilterChain.java:174)
at org.apache.mina.core.filterchain.DefaultIoFilterChainBuilder.buildFilterChain(DefaultIoFilterChainBuilder.java:452)
at org.apache.mina.core.polling.AbstractPollingIoProcessor.addNow(AbstractPollingIoProcessor.java:530)
at org.apache.mina.core.polling.AbstractPollingIoProcessor.handleNewSessions(AbstractPollingIoProcessor.java:503)
at org.apache.mina.core.polling.AbstractPollingIoProcessor.access$400(AbstractPollingIoProcessor.java:68)
at org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:1133)
at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IllegalArgumentException: SSLv2
at sun.security.ssl.ProtocolVersion.valueOf(ProtocolVersion.java:161)
at sun.security.ssl.ProtocolList.convert(ProtocolList.java:84)
at sun.security.ssl.ProtocolList.<init>(ProtocolList.java:52)
at sun.security.ssl.SSLEngineImpl.setEnabledProtocols(SSLEngineImpl.java:2061)
at org.apache.mina.filter.ssl.SslHandler.init(SslHandler.java:170)
at org.apache.mina.filter.ssl.SslFilter.onPreAdd(SslFilter.java:417)
at org.apache.mina.core.filterchain.DefaultIoFilterChain.register(DefaultIoFilterChain.java:277)
... 10 more

Thank you in advance,


Robstarusa
Posts: 14
Joined: Sat Sep 13, 2014 1:42 am

Re: IMAPS not working

Postby Robstarusa » Wed May 24, 2017 10:33 pm

Are you using the reverse proxy? have you disabled TLSv1 or TLSv1.1 ?
demadesII
Posts: 3
Joined: Tue May 23, 2017 9:20 pm

Re: IMAPS not working

Postby demadesII » Mon May 29, 2017 10:48 am

Hello,

thank you for your reply. No, I'm not using the reverse proxy and I have not disabled TLSv1 neither. It's funny, because SMTP over TLS works fine, but not IMAPs. I hope this info rings a bell.

Regards,

F
iomarmochtar
Posts: 41
Joined: Sat Sep 13, 2014 3:54 am
Location: Indonesia
Contact:

Re: IMAPS not working

Postby iomarmochtar » Mon May 29, 2017 1:47 pm

What mail user agent (mua) do you test for imaps ? have you try with another mua ?
demadesII
Posts: 3
Joined: Tue May 23, 2017 9:20 pm

Re: IMAPS not working

Postby demadesII » Tue May 30, 2017 5:58 am

I tried with the email client by Android, Outlook and BlueMail.

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