> >I send out a list of 40k. > > One recipient per SMTP session, or chunks of 20 or 30 > recipients per SMTP session?
I send 200 with 1 minute intervals-- which works for the first 5000. I also just adjusted the smtp connections from 30 to 100-- I will see if that will crash windows or help. > The specific problem appears to be Imail queue manager, or > whatever it is running the Imail resource allocation show, > when it gets hit with big spikes of incoming mail, just like > you're doing. I also put back declude.exe as the smtp, so the overflow folder is created- which supposely helped the flow? But I pulled declude.exe because it was VERY slow in putting the mail back in spool. Nonetheless I still have the same problems with either declude or smtp > Since Imail doesn't self-throttle very well and is > susceptible to your type of spiky traffic, I recommend you > throttle your sending to Imail. Start low to establish a > happy baseline, and then increase until Imail starts getting stressed. That again is hard to figure as the first 5k get sent. Sure I can make 8 lists of 5k each-- but that is a pain- I don't feel like baby sitting a mailserver. > Of course, your Imail box has to be tuned, pruned, cleaned, > optimized, both Imail and OS, but you've probably tried all of that. We've done some, but all suggestions are welcome. PS. Great Hotel and Condo Deals *WorldWide* are found at http://www.FLORIDA.com 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/
