On Wed, 2009-02-04 at 11:17 -0700, Mark Costlow wrote: > Hello, I'm preparing to convert from qpopper + UW-IMAP to dovecot. > So far testing has gone very well. One problem we haven't figured > out is that long-running POP sessions keep the mailbox locked, so that > the MDA times out while trying to deliver. We're using "maildrop" as > our MDA if that matters. .. > We though this setting would address the issue: > > # Keep the mailbox locked for the entire POP3 session. > pop3_lock_session = no > > But it doesn't seem to. > > Any ideas?
Switch to Maildir and the problem goes away. The issue is that the mbox file is read-locked when the first message is read. And since the POP3 client most likely just keeps reading messages for the entire session, the mbox file kept read-locked all the time. Can't really be fixed without some larger redesign (which is really not worth it).
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