Hi,

We are using the following Zimbra version

Release 8.0.2_GA_5569.RHEL6_64_20121210115059 CentOS6_64 FOSS edition.


While trying to upload emails of 20MB+ from users local folders to Zimbra folder, the following error is appearing in the logs

Code:
2013-05-26 04:36:54,920 WARN  [ImapServer-42] [name=xxxxxxx@indoarya.com;ip=1.1.1.1;ua=Thunderbird/17.0.6;] DefaultIoFilterChain - Unexpected exception from exceptionCaught handler.
java.lang.NullPointerException
	at com.zimbra.cs.imap.ImapRequest.parseTag(ImapRequest.java:539)
	at com.zimbra.cs.imap.NioImapHandler.exceptionCaught(NioImapHandler.java:86)
	at com.zimbra.cs.server.NioHandlerDispatcher.exceptionCaught(NioHandlerDispatcher.java:93)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.exceptionCaught(DefaultIoFilterChain.java:697)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextExceptionCaught(DefaultIoFilterChain.java:483)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1100(DefaultIoFilterChain.java:46)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.exceptionCaught(DefaultIoFilterChain.java:791)
	at com.zimbra.cs.server.NioLoggingFilter.exceptionCaught(NioLoggingFilter.java:51)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextExceptionCaught(DefaultIoFilterChain.java:483)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1100(DefaultIoFilterChain.java:46)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.exceptionCaught(DefaultIoFilterChain.java:791)
	at org.apache.mina.core.filterchain.IoFilterEvent.fire(IoFilterEvent.java:94)
	at org.apache.mina.core.session.IoEvent.run(IoEvent.java:63)
	at org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.runTask(OrderedThreadPoolExecutor.java:780)
	at org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.runTasks(OrderedThreadPoolExecutor.java:772)
	at org.apache.mina.filter.executor.OrderedThreadPoolExecutor$Worker.run(OrderedThreadPoolExecutor.java:714)
	at java.lang.Thread.run(Thread.java:722)
2013-05-26 04:36:54,921 WARN  [ImapServer-42] [name=xxxxxxx@domain.com;ip=1.1.1.1;ua=Thunderbird/17.0.6;] imap - BAD parse error: zero-length content
I tried to search for the above, but couldn't find anything. Can anyone please help in understanding what the above error means, why it is being caused, and way to fix it ?