James 3.4 sudden failure

Hello, It's been awhile since I was last on this list looking for an 
answer to a problem! That's because my Apache James 3.4 server has been 
running well enough for quite awhile. But yesterday it suddenly failed 
and I need help to find a fix/solution.

I first noticed this problem when all users, myself included, started 
getting errors such as what Thunderbird reports when attempting to fetch 
email from the imap server -

> The current operation on '<account folder' did not succeed. The mail 
> server for account marc@<mydomainname>.com responded: SELECT failed. 
> No such mailbox. Since this is happening on both Windows and Linux 
> systems, that places my suspicions on the James server itself.
>
Looking at the James wrapper.log file I see this error and stack 
walkback occurring and repeating a lot -

> INFO | jvm 1 | 2024/09/07 13:59:29 | 2024-09-07 13:59:29,951 ERROR | 
> org.apache.james.imap.processor.fetch.FetchProcessor | Fetch failed 
> for mailbox 80f33e00-bf03-4de7-b9b5-a55c5c73262f and sequence-set 
> [IdRange ( 1->9223372036854775807 )] INFO | jvm 1 | 2024/09/07 
> 13:59:29 | 
> org.apache.james.mailbox.exception.MailboxNotFoundException: 
> #private:Postmaster@<mydomain>.com:INBOX can not be found INFO | jvm 1 
> | 2024/09/07 13:59:29 | at 
> org.apache.james.mailbox.maildir.MaildirStore.loadMailbox(MaildirStore.java:118) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.mailbox.maildir.mail.MaildirMailboxMapper.visitUsersForMailboxList(MaildirMailboxMapper.java:287) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.mailbox.maildir.mail.MaildirMailboxMapper.list(MaildirMailboxMapper.java:256) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.mailbox.maildir.mail.MaildirMailboxMapper.findMailboxById(MaildirMailboxMapper.java:115) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.mailbox.store.StoreMailboxManager.getMailbox(StoreMailboxManager.java:291) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.imap.processor.base.SelectedMailboxImpl.getPath(SelectedMailboxImpl.java:148) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.imap.processor.AbstractMailboxProcessor.getSelectedMailbox(AbstractMailboxProcessor.java:414) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.imap.processor.fetch.FetchProcessor.doProcess(FetchProcessor.java:75) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.imap.processor.fetch.FetchProcessor.doProcess(FetchProcessor.java:58) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.imap.processor.AbstractMailboxProcessor.doProcess(AbstractMailboxProcessor.java:110) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.imap.processor.AbstractMailboxProcessor.process(AbstractMailboxProcessor.java:97) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.imap.processor.AbstractMailboxProcessor.doProcess(AbstractMailboxProcessor.java:89) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.imap.processor.AbstractMailboxProcessor.doProcess(AbstractMailboxProcessor.java:71) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:57) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:66) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:66) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:66) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:66) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:66) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:66) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:66) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:66) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:66) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:66) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:66) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:66) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:66) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.apache.james.imapserver.netty.ImapChannelUpstreamHandler.messageReceived(ImapChannelUpstreamHandler.java:196) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.jboss.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:462) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.jboss.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:443) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.jboss.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:303) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.jboss.netty.handler.execution.ChannelUpstreamEventRunnable.doRun(ChannelUpstreamEventRunnable.java:43) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.jboss.netty.handler.execution.ChannelEventRunnable.run(ChannelEventRunnable.java:67) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> org.jboss.netty.handler.execution.OrderedMemoryAwareThreadPoolExecutor$ChildExecutor.run(OrderedMemoryAwareThreadPoolExecutor.java:314) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) 
> INFO | jvm 1 | 2024/09/07 13:59:29 | at 
> java.base/java.lang.Thread.run(Thread.java:829) INFO | jvm 1 | 
> 2024/09/07 13:59:29 | 2024-09-07 13:59:29,954 INFO | 
> org.apache.james.metrics.logger.DefaultMetricFactory | Time spent in 
> IMAP-FETCH: 525 ms. INFO | jvm 1 | 2024/09/07 13:59:32 | 2024-09-07 
> 13:59:32,060 INFO | 
> org.apache.james.metrics.logger.DefaultMetricFactory | Time spent in 
> IMAP-IDLE: 2 ms. 

Looking at the mail storage on the disk, I think the directory for 
Postmaster is messed up -

> quasar:~ #ls 
> /mail/apache-james/var/store/maildir/<mydomain>.com/Postmaster .Sent 
All the other storage directories for different accounts have a 
different set of files (but all similar to each other) This Postmaster 
directory seems to be missing a lot of stuff.

I did run fsck.ext4 checks on the partition holding all of the mail 
files and it didn't find anything wrong. So how do I fix this so that 
the James server will be a happy camper again and fetch emails from the 
imap server? Is there a way to manually fix this or a script perhaps 
that will reconstruct damaged mail store directories?

Thanks in advance for your time and help! Marc..