Gang-

We're seeing the following errors in mailbox.log, pretty frequently this morning, corresponding to lots of errors on IMAP clients:

2008-03-03 10:45:44,017 INFO [ImapServer-1289] [] ProtocolHandler - Exception occurred while handling connection
java.net.SocketException: Broken pipe
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(SocketOutp utStream.java:92)
at java.net.SocketOutputStream.write(SocketOutputStre am.java:136)
at java.io.BufferedOutputStream.flushBuffer(BufferedO utputStream.java:65)
at java.io.BufferedOutputStream.flush(BufferedOutputS tream.java:123)
at com.zimbra.cs.imap.TcpImapHandler.sendLine(TcpImap Handler.java:295)
at com.zimbra.cs.imap.ImapHandler.sendResponse(ImapHa ndler.java:3442)
at com.zimbra.cs.imap.ImapHandler.sendOK(ImapHandler. java:3429)
at com.zimbra.cs.imap.ImapHandler.doEXPUNGE(ImapHandl er.java:2582)
at com.zimbra.cs.imap.ImapHandler.executeRequest(Imap Handler.java:330)
at com.zimbra.cs.imap.TcpImapHandler.processCommand(T cpImapHandler.java:151)
at com.zimbra.cs.tcpserver.ProtocolHandler.processCon nection(ProtocolHandler.java:160)
at com.zimbra.cs.tcpserver.ProtocolHandler.run(Protoc olHandler.java:128)
at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Wo rker.run(Unknown Source)
at java.lang.Thread.run(Thread.java:619)

This just began happening this morning, and we cannot trace it to any change of environment. Anyone have experience with this error?

-j