Re: NTMail Performance

Ed Miller ( (no email) )
Fri, 6 Feb 1998 15:17:37 -0500

This is in very poor taste.

>Hi Duane,
>You could try MailSite:
>We have many customers running the product with Emerald without any
>performance problems. We also have many customers switching from NTMail.
>Here is a recent message from one customer about Emerald:
>From: Steve Williams
>Date: Thursday, January 29, 1998 6:19 PM
>Subject: Re: MailSite and Radius
>>>I am not using MailSite just yet but am interested in some stats and
>>situations. I would be very interested to know your experiences relating
>>>1. Using MailSite with Radius Authentication.
>>With an Emerald database? Works perfectly.
>Regards, John.
>-----Original Message-----
>From: Duane Schaub <>
>To: <>
>Date: Thursday, February 05, 1998 8:37 AM
>Subject: NTMail Performance
>>I am getting poor performance from my NTmail/Emerald setup.
>>NTMail is running on a machine with 128Mb ram/P200(Just a plain old 200)
>>and IIS4 with a few domains. After running for a day or so, POP and SMTP
>>occupy about 70-90 MB of RAM by themselves, and inetinfo user another
>> It takes about 24 hours to reach these ram levels. Immediately after
>>up, only about 71 Mb (including disk cache) is in use. I believe that the
>>inetinfo size is due to IIS caching its web content.
>>Anyway, SQL is on a different server p166/96Mb RAM. When a user checks
>>mail, it takes 10-15 seconds for emer_ntm to retrieve the user info from
>>the DB. It almost seems like it has to login to the SQL server or
>>something like that. The SQL server only has about 10-15% CPU utilization
>>and considerable idletime on the Harddrive. It appears to just be sitting
>>there after the pop request has come in.
>>Is this performance normal with NTmail? I have a number of users
>>complaining that SOME of their incoming mail is bouncing back to the
>>with invalid user errors. This is only some mail. Also, when checking
>>mail sometimes users get "Invalid username/password". They can check
>>a few seconds later and it works. The problem is that some users
>>immediately start playing with their system and screw it up. Then I spent
>>the next half hour trying to fix them.
>>Here's one for Dale.... Can you make an SQL script that will generate a
>>file (like radius) that can bet run with the command line ntmail program
>>save the users to the ntmail registry. This will allow users to bypass
>>ntmail.dll and full utlilize the aliases, etc within emerald. If this can
>>be done in an external program or as an SQL script, then I can schedule it
>>to run periodically during the day. This will reduce the loading on the
>>SQL server and reduce network traffic plus significantly enhance the
>>reliability of the NTmail server since it won't rely on the ODBC
>>connection... Which seems shaky at best.
>>Duane Schaub, President |Terra World, Inc - Connecting The Planet
>>Terra World, Inc. |Southeast Kansas' Leading Provider
>>200 Arco Place, Suite 252 |Flat Fee - Never an hourly Charge
>>Independence, Kansas 67301 |Where Service is Top Priority!
>>Voice (316) 332-1616 |
>>FAX: (316) 332-1451 |
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