Sounds like this could be a max of 500MB load (assuming a very generous average of 50KB per email and all 100 nearly simultaneously logging in.) On a 100Mbps LAN, even this worst-case shouldn't be THAT bad.
A couple of infrastructure caveats to ensure quick processing and transfers: 1. Make sure Imail NIC and network segment is operating at 100Mbps, not 10. 2. All switches, NO HUBS. Hubs anywhere will kill your throughput under heavy loads. 3. In the past, if Imail was dual-homed (two nics or IP's), it would often respond to requests on the wrong interface as it binds to all ports. This caused huge slowdowns because of timeouts and retries. I don't what version this was fixed. 4. Keep disks defragged! 5. Make sure you don't have any real-time desktop AV scanner operating on server. (Only AV scanner should be tied to SMTP process). Dev Monday, June 6, 2005, 12:28:26 AM, you wrote: CM> Hello List CM> My factory has an annual shutdown, in this 1 CM> week period, no-one accesses CM> their email. On the Monday back everyone CM> tries to download 100+ emails each. CM> This process is VERY slow. How can I improve CM> the response time of IMail or CM> my network? CM> Environment CM> 100 users on W2K SP4 or XP SP2 CM> 100Mb LAN CM> Mail Server CM> Imail v8.14 CM> W2K SP4 CM> Dell Xeon 1.8Ghz CM> 1Gb RAM CM> Dual 1Gb LAN CM> Regards - Chris CM> Mr Chris Moore CM> Systems Engineer CM> Brother Industries (UK) Limited CM> Tel: +44(0) 1978 813 425 CM> Fax: +44(0) 1978 813 495 CM> To Unsubscribe: CM> http://www.ipswitch.com/support/mailing-lists.html CM> List Archive: CM> http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ CM> Knowledge Base/FAQ: CM> http://www.ipswitch.com/support/IMail/ 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/
