courier imap - unable to access shared folders: "operation not supported"

R Skinner rocky at herveybayaustralia.com.au
Tue Jul 9 03:38:36 UTC 2013


I'm really tearing my hair out here, this was working until I had to do 
a repair on the server hdd and rebuild it, and now I cannot work out why 
this has been working at all- no amount of googling even hints at what 
could be wrong.

I'm trying to access shared folders on a courier-imap server and the 
client simply does nothing, the logs are very obscure as well, and it is 
on these that I have been focusing my searches on and then trying 
generalisations:

Jul  9 12:59:29 server1 imapd: FAMCancelMonitor: Broken pipe
Jul  9 12:59:30 server1 imapd: 
shared-folders/<shared-folder>/tmp/1373338770.M51083P2034_sync.<server>: 
Operation not supported
Jul  9 12:59:30 server1 imapd: FAMCancelMonitor: Broken pipe
Jul  9 12:59:30 server1 imapd: 
shared-folders/<shared-folder>/tmp/1373338770.M453207P2034_sync.<server>: Operation 
not supported
Jul  9 12:59:30 server1 imapd: FAMCancelMonitor: Broken pipe
Jul  9 12:59:50 server1 imapd: LOGIN, user=<user1>, ip=<IP>, 
port=[59585], protocol=IMAP
Jul  9 13:00:12 server1 imapd: LOGIN, user=<user2>, ip=<IP>, 
port=[30542], protocol=IMAP
Jul  9 13:03:44 server1 imapd: end from FAM server connection
Jul  9 13:03:59 server1 imapd: FAMPending: timeout
Jul  9 13:05:18 server1 imapd: couriertls: read: Connection reset by peer
Jul  9 13:05:18 server1 imapd: DISCONNECTED, user=<user2>, ip=<IP>, 
headers=0, body=0, rcvd=314, sent=25847, time=306, starttls=1

I cannot find any references anywhere on this at all. The server has a 
mail store over NFS located on a ZFS fileserver, nothing has changed as 
such in the transition and it was working before the hdd repair was 
done. The only change I tried in the past 5 mins was turning the 
enhancedidle switch in the conf, and all that produced was the FAM 
errors you can see.

Does anyone have any clues to this?

Cheers


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