Vinay, >The CPU load on our Quad Xeon box has gone down from 90% from 6%.
Congratulations, but your problem had nothing to do with Imail. These figures simply do not agree with the overwhelming majority of Imail users' experience. I don't know how big your userbase is, but Imail would not have any customers at all if it were that much of a CPU sucker with only POP3 and SMTP running. All the known, unresolved CPU issues with Imail relate to IMAP4/HTTP, AFAIK, and even then only occur under sizable load. >If there was a problem with the NIC, why did the POP3 and Webmail >service continue to accept connections without any problems? Surely you're not saying you've never experienced a condition where a host appeared to have basic connectivity, but proper methodical troubleshooting or direct network analysis showed packet-level errors. If you haven't seen this before, you're not in any position to be second-guessing support on this issue, even if they were wrong in this instance. "Why did they accept connections?" is not the same as "Why couldn't they sustain connections?" It only takes SYN-SYNACK-ACK to start up a TCP/IP connection, and automatic retries will enable such opening conversations to happen even on an error-filled network. When there's more to transmit over that connection is when bad packets make themselves known and CPUs start to spin. > One of their suggestions was to replace our Intel Pro/100 Server > NICs with Linksys NICs! This is especially bizarre, given that there are documented *problems* with LinkSys cards in servers and no such reports with Pro/100 Server NICs! Perhaps the tech misread their own KB (not impossible, admittedly) or you misread their response. An easy search in the mail archives, which you evidently did not attempt, would've given you the correct information. >IMail would accidentally write mail to wrong mailboxes! I'm sure that you had something set up incorrectly, possibly overlapping top-level directories. >IPSwitch support was absolutely clueless. *Here* is one area where most of us would agree. It is a sad situation that has probably cost Ipwitch many a customer. It's also why this list exists and is the sole source of support for many, if not most Imail users, outside of the KB. My archives show that you have not posted to this list in the past year. Did you not know it existed (it's linked to, and luckily hosted by, Ipswitch)? At any rate, if you're now on CommuniGate Pro, I think it's time to unsubscribe from this list to save us all some energy. Sandy Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/
