That would be similar to what I've experienced here, although the emails
are always between 3k and 20k in size.

What I've done recently is take our software out of the loop.  Our
software always sends locally (same computer) to the IIS SMTP server
since the software implements only a simple email queue.  I sent 450
emails to the local SMTP server and then copied the 450 emails from the
queue to a temporary location.  I then let IIS SMTP send out the emails
to the XMail server (on another computer on the LAN).  1 of the 450
emails was corrupted.  Once all 450 emails were sent, I copied the same
450 emails back into the queue and let IIS SMTP send again.  1 email was
corrupted again, although it was a completely different email.  Also, in
each of these emails, I'm sending as well as BCC'ing to accounts on the
XMail server, and in the first case, the original email was corrupt and
the BCC was fine, and in the second case, corresponding BCC and original
email were corrupt.  This was done mainly to prove it was not our
software causing the corruption, but I realize it doesn't prove XMail is
the problem.

In trying to find the solution to the problem I've configured IIS SMTP
in different ways.  First, to make only 1 connection and to send a
maximum of 500 emails per connection, and second to make up to 1000
connections and to send only 1 email per connection.  I was hoping one
of these cases might aggravate the problem and cause more corruption,
but neither had that effect.

I am still looking into the issue, but I believe I have run out of time.
I'm setting up this XMail server for a small company and the time
remaining to have it completely functional has run out.  It seems that
this afternoon I will be switching to a trial version of Microsoft's
Exchange Server to see if Exchange will solve the problem.  If I find
any useful information, such as how to reproduce this reliably or make
the problem obviously worse, I will be sure to post it here.  I will
also be sure to let you know if Exchange exhibits the same behaviour, as
I really like XMail and use it at home, but in this case I'm being
pushed by the powers that be to go with the "tried and true".....

Thanks,

Kent

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Adrian Hicks
Sent: Tuesday, March 09, 2004 23:13
To: [EMAIL PROTECTED]
Subject: [xmail] Re: Corruption of Email Content


I've had something similar here; XMail 1.17 on Debian 3.0.

One of our users decided to send out a 6mb attachment to all our staff
(47 
users), & about 70 percent of the messages received had corrupted 
attachments.  That was some time ago & since then I've told the person
to 
use our network for such distribution.  However it doesn't take away
from 
the fact that messages were corrupted.

Adrian Hicks
-- 
MIS & Facilities Manager
Auston Int'l Group Ltd
45 Middle Rd, #01-00 Auston Unicentre

Tel: (65) 6339 4800 ext. 229
Fax: (65) 6339 7600
E-mail: [EMAIL PROTECTED]


On Wednesday 10 Mar 2004 12:24 am, you wrote:
> When running windows NT, the cluster size is 512 Bytes, when running 
> windows XP pro, the cluster size was 4K.  Unfortunately I don't have a

> script to give you to reproduce this problem, for a couple of reasons.

> First, the software we use is a proprietary commercial product, and 
> second, there is no reliable way to reproduce the problem.
>
> My intent in posting the problem was to see if anyone else had ever 
> experience such an issue.  Right now I can't even be certain that it 
> is infact XMail that is the problem, although I've systematically 
> ruled out almost every other piece of software.
>
> Today I am switching to Windows 2000 Server and will be running as 
> many tests as I can to see if the problem is isolated to non-server 
> operating systems.  I am hoping that the limitations present in the 
> networking components of Microsoft's non-server operating systems are 
> somehow causing the problem, but this is a bit of a stretch.
>
> Kent
>
> -----Original Message-----
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED]
> On Behalf Of Edinilson J. Santos
> Sent: Monday, March 08, 2004 20:12
> To: [EMAIL PROTECTED]
> Subject: [xmail] Re: Corruption of Email Content
> Importance: High
>
>
>  This sounds strange for me because I'm using XMail since 0.69 in 
> Windows environment without this kind of problem. Today we are hosting

> thousands of mailboxes using version 1.17 with W2K Server. Could you 
> send me the script (or the code) that you are using to try to simulate

> here, in my environment.
> ps: Which NTFS cluster size are you using?
>
> Edinilson
>
>
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