Aaron, What kind of NIC is in the 2000 box? This is a hot topic recently on the IMail list. See the thread "FIXED! Imail SLOW When Running On Fast W2K Hardware".
Dev discovered that there definitely is a problem with newer faster NICs, Windows 2000, and IMail 7.??. IPSwitch recommends installing a 3c905 and seeing if that clears things up. Dev and I confirmed that Intel NICs and lots of gigabit NICs don't play well with Win2000 and IMail 7. In fact, simply disabling them in Windows and using a 3c905 is not good enough. We actually had to disable them at the bios level (for onboard NICs) or remove them completely from the system. This cleared up our problems which were almost identical to yours. Another symptom we had was painfully slow webmail logins. For example, my older 866Mhz PIII 512MB, 7200RPM drives on NT4, IMail 7.12 logged my account in in about 5-6 seconds. On a 1GHz PIII, 1GB RAM, 10KRPM drives, Windows 2000 took 3-4 minutes to log in to web mail. All other factors were identical. I rebuilt the NT 4 box as 2000, this time disabled the Intel NIC in the bios, put in a 3c905c and it was smokin' again. IPSwitch hasn't confirmed this, but several of us experiencing this problem (again, all either Intel NICS on 2000 or any Gigabit card on 2000) have done this and it fixed the speed problems. If you read the threads, you'll see that we went through every possible diagnostic step, even removing the server from the network, logging in via web mail from the server console using the IP address to rule out DNS, network latency, etc. But nothing made a bit of difference until we switched NICs at the hardware level. Hope this helps. It would be helpful if you would post your results to the IMail list if this helps. We'd definitely appreciate hearing it. Maybe IPSwitch would too. --Todd. ----- Original Message ----- From: "Aaron Moreau-Cook" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, January 13, 2003 5:45 PM Subject: [Declude.JunkMail] OT: Slow IMail IMAPd > Declude List, > > Sorry for the off topic post, but we are scratching our heads on this. > > We have migrated a customer of ours who is using IMAP, however performance > is very poor compared to I-Mail 6.06. Other customers who use the same > server report that POP and SMTP have increased in speed. > > The slow behavior is when the client in Outlook 2000, when you hit > send/receive a dialog box appears that says "Updating Cached Headers." This > process takes about 45 seconds for only 215 messages. > > I have tried for days to troubleshoot, but I have been unable to find > anything even remotely informative why this problem is. > > The old IMail server was running IMail 6.06 on a Single Pentium III 600mhz, > 512mb RAM, Windows NT, Single 36 GB SCSI. > > The new IMail server is running IMail 7.13 on a Dual Pentium 933mhz, 1024mb > RAM, Windows 2000, RAID5 (3 x 18 GB SCSI). > > Does anyone out there have any pointers or suggestions? I've checked log > files, Google, ipSwitch, etc, with no luck. > > Thanks, > > Aaron > > --- > [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] > > --- > This E-mail came from the Declude.JunkMail mailing list. To > unsubscribe, just send an E-mail to [EMAIL PROTECTED], and > type "unsubscribe Declude.JunkMail". The archives can be found > at http://www.mail-archive.com. > --- [This E-mail was scanned for viruses by Declude Virus (http://www.declude.com)] --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type "unsubscribe Declude.JunkMail". The archives can be found at http://www.mail-archive.com.
