> The problems we've had are always to do with CPU time used by either > the smtpd32.exe or smtp32.exe processes. In the last month, the > server CPU usage has been averaging 93%...My experiments with > PerfMon show that disc I/O is not a bottleneck at all, it is always > lack of CPU resources.
CPU that high centered on those processes is probably related to network problems that are to some degree off-box and off-IMail--check the connection end-to-end, including software drivers, link negotiation, and all hardware. Also look into issues with DNS, as Len said, which can cause intense slowdowns. > * Should this hardware be able to handle that number of messages per > day? Absolutely. > * Is the registry a known bottleneck for IMail? No, quite the opposite. It's the fastest user database option. --Sandy ------------------------------------ Sanford Whiteman, Chief Technologist Broadleaf Systems, a division of Cypress Integrated Systems, Inc. e-mail: [EMAIL PROTECTED] SpamAssassin plugs into Declude! http://www.mailmage.com/products/software/freeutils/SPAMC32/download/release/ Defuse Dictionary Attacks: Turn Exchange Addresses into IMail Aliases! http://www.mailmage.com/products/software/freeutils/exchange2aliases/download/release/ To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
