Re: IIS%/SMTP Outbound Performance

Tech-Archive recommends: Fix windows errors by optimizing your registry

From: Bob [BVP] (bb4_at_pmount.com)
Date: 02/17/05 

Date: Thu, 17 Feb 2005 17:16:45 -0600

Never did find any solutions to this problem. So I just
deployed a Windows 2003 Web Edition smpt outbound
server, and the outbound issue went away, the concurrent
connections it opens up is in the hundreds and thru-put went sky
high. I do not know wha the deal is with IIS5 and it's smtp
engine cycling thru like 3 connections max, and taking 30
seconds per message.. but oh well..

"Bob [BVP]" <bb4@pmount.com> wrote in message news:Om2QkcC%23EHA.3596@TK2MSFTNGP12.phx.gbl...
>
> I am having an issue of performance on my outbound SMTP server..
> W2K IIS5 all patched up.. What I see is that when my users start sending
> hundreds of emails at a time the queue starts backing up, and other users
> cannot get thier email out in timely manner.. We are not talking about huge
> message either.. when I monitor the server TCP connections to see how
> many connections are being create (TCP View Sysinternals)I only see about
> 3 connections to smtp ports.. They cycle thru SLOWLY.. as they finish.. I have
> a T1 connection. I suspect I should be seeing the connection numbers going
> up, but I am not. I have only found one tuning article that indicates how to maybe
> get the number of conncurrent smtp connections to go up, and I have done that
> without results.. The dns is working properly.. I have purchasing dept that send
> emails via BCC to hundreds of addresses in one email.. I see alot problems
> with the email adds, but this should not have this kind of impact on the total
> performance of the smtp engine should it ? Sigh..
>
> ANY ideas on how to get this outbound smtp server thru-put
> up would greatly be appreciated to the point of me shipping your beer to you..
> Sigh..
>
> Thanks, Bob
>
>

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