On Monday, Sep 1, 2003, at 00:52 Europe/Helsinki, Eric S. Johansson wrote:
In both cases when the client fetches messages from the inbox and starts redistributing them, CPU utilization on the imap server goes to around 40 percent for Mozilla and around 90 percent for mahogany.
There are long delays on the order of two minutes when filtering messages. or 30 to 50 seconds when opening a mailbox.
Check what Dovecot is doing at the time. Use rawlog (or network sniffer) and strace.
Other than the performance problems, Mozilla is relatively well-behaved. Mahogany on the other hand is a bit more rough and (not) ready. It uses c-client for its imap code and during the filter driven message redistribution process, it all of a sudden started started complaining about unexpected EOF and I found one corrupted message:
Humm.. If it copies a message from a mailbox to itself, that could break mbox, or at least complain about some errors.. Could it be that?