mailbox - Failed to lock mailbox

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eranga
Posts: 22
Joined: Sat Sep 13, 2014 3:20 am

mailbox - Failed to lock mailbox

Postby eranga » Thu Nov 05, 2015 10:21 pm

Users of our zimbra server randomly complains that they cannot connect to their mailboxes. When we check we see the following errors.


mailbox - Failed to lock mailbox


mailbox - transaction canceled because of lock failure



lmtp - try again for message from=,to=: another mail delivery in progress



lmtp - S: 451 4.0.0 Temporary message delivery failure try again (DATA)


They can login to their webmail and the mails start delivering after a service restart.


zmcontrol -v = 8.0.5.GA.5839.UBUNTU12.64 UBUNTU12_64 FOSS edition


I have tried permission fix but the errors still occur.



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