Mail size limitation of end user(attachment )

Lelle

Sorry for crossposting - sent to wrong group first

hello ! does anyone have more information regarding this issue?

http://www.systemwebmail.com/faq/2.3.aspx
a.. Attachment Size Limit? [ Reply ]
I am using SMTP Mail Service running under IIS on win2k server to send
word/excel/pdf/etc files as attachments from several in house applications
(windows forms and web apps) using following code;
..Attachments.A dd(New Mail.MailAttach ment(sFullPath,
Mail.MailEncodi ng.UUEncode))
There appears to be a limit to the size that a standard user can send. When
I log in as administrator (or a user who is in administrators group) I can
use the apps to send attachments > 100kb. When logged in as a standard user,
the message is sent ok, but when the attachment is opened by recipient, the
attached file is empty! The message size limit in SMPT Virtual Server
properties under IIS is set to 2048. I changed this to 10 to test and the
apps failed to even send the message. So it appears some setting on the
server is 'emptying' attachments > 100 kb for non-administrator users. Or
somehting like that... Any solutions to this problem?

Oli [ olivert ( at ) ablegroup dot com dot au ], 2004-06-01 18:49:56 #

a.. RE: Attachment Size Limit? [ Reply ]
I have exactly the same problem. Just wonder if you have found a solution.

UB [ becker_web ( at ) web dot de ], 2004-06-29 13:18:56 #

a.. RE RE: Attachment Size Limit? [ Reply ]
I had this same problem, and the way I solved it was this...

We have a web service that creates and sends all the emails.

In the web.config file for that web service, we impersonate a domain user
who we made an administrator on the web server local machine.

It's not the best solution, but it's the only one we could get to work.

Jeremy Halbert [ jeremyh ( at ) leverance dot com ], 2004-09-16 14:32:45 #

a.. RE: RE RE: Attachment Size Limit? [ Reply ]
I have the same problem. Local Admins can send any file regardless of the
size. My end users can only send files <100kb. I am using .Net Framework
1.0. Any other suggestions or fixes?

JSM [ jsmathot ( at ) hotmail dot com ], 2004-10-14 12:41:58 #

Nov 19 '05 #1

Subscribe Reply

2518

Michael Bennett

Lelle wrote:

Sorry for crossposting - sent to wrong group first

hello ! does anyone have more information regarding this issue?

http://www.systemwebmail.com/faq/2.3.aspx

Well the only thing I can mention is that I just encountered this issue as
well. The information in your message (including the possible solution) that
you forwarded to this newsgroups appears to be correct. In my ASP.NET
application, for identity impersonation I was using a low-level login account
that was not an administrator on the PC, and had very little rights except what
was given to it in terms of running the web application. Any attachment sent
(either PDF or text) that was larger than 100KB was "munged". Once I changed
the identity impersonation to an admin account, attachments were sent fine w/no
problems. I have yet to look further into this problem but I wouldn't be
suprised if this was related to some security feature of the SMTP server.

-James Michael Bennett

Nov 19 '05 #2

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