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File Size Restrictions, NDR reports and Exchange as a file store??

Author
7 May 2009 9:43 AM
Mike Sharp
let me set the stage,

I am the administrator of an windows server 2003 environment, running
exchange 2003 for 50 users, the company is a construction firm.

I have a growing issue with the now daily barrage of multiple large (by
large I mean 8mb +) file attachments we are having hit our mail server.

the majority of these are auto cad files and pdf's to comprise tender
documents and project files for ongoing construction jobs.

first question,

the NDR report generated to the external sender when they send for example
an 11mb attachment, the sender gets the NDR, but the intended recipient is
not notified. I would like to notify the recipient of large files being
rejected, how do I do this?

second question,

what is the Microsoft approved solution for dealing with exchange as a large
file trasmission system, I have set my exchange server to be restricted to
8mb send and 8mb receive, I am getting it in the neck at present from the
board and a number of the contracts managers as they say this is just
unworkable and no one else on the tender list is bouncing large files so when
they call the original senders of the bounced messages they are being
perceived to be awkward.

However I know from viewing the NDR list on my exchange server that if I
removed the limit we would grind to halt as we would exceed the limit of our
exchange server at 75gb in no time at all.

third and last question

exchange server really isnt intended as a file store in my mind, however I
need some concrete evidence to support this to my users and also I need an
alternative method for delaing with the transmission and reciept of large
files. any suggestions?

Thank you so much for taking the time to read through this, I appreciate
your patience and I thank you in advance for any solutions, ideas and
suggestions you may have to offer.

Author
7 May 2009 12:11 PM
Lanwench [MVP - Exchange]
Mike Sharp <MikeSh***@discussions.microsoft.com> wrote:
Show quoteHide quote
> let me set the stage,
>
> I am the administrator of an windows server 2003 environment, running
> exchange 2003 for 50 users, the company is a construction firm.
>
> I have a growing issue with the now daily barrage of multiple large
> (by large I mean 8mb +) file attachments we are having hit our mail
> server.
>
> the majority of these are auto cad files and pdf's to comprise tender
> documents and project files for ongoing construction jobs.
>
> first question,
>
> the NDR report generated to the external sender when they send for
> example an 11mb attachment, the sender gets the NDR, but the intended
> recipient is not notified. I would like to notify the recipient of
> large files being rejected, how do I do this?
>
> second question,
>
> what is the Microsoft approved solution for dealing with exchange as
> a large file trasmission system, I have set my exchange server to be
> restricted to 8mb send and 8mb receive, I am getting it in the neck
> at present from the board and a number of the contracts managers as
> they say this is just unworkable and no one else on the tender list
> is bouncing large files so when they call the original senders of the
> bounced messages they are being perceived to be awkward.
>
> However I know from viewing the NDR list on my exchange server that
> if I removed the limit we would grind to halt as we would exceed the
> limit of our exchange server at 75gb in no time at all.
>
> third and last question
>
> exchange server really isnt intended as a file store in my mind,
> however I need some concrete evidence to support this to my users and
> also I need an alternative method for delaing with the transmission
> and reciept of large files. any suggestions?
>
> Thank you so much for taking the time to read through this, I
> appreciate your patience and I thank you in advance for any
> solutions, ideas and suggestions you may have to offer.

I'm setting up my reply to crosspost to exchange.admin, as that group gets a
lot more traffic and you'll probably have more replies that way.

I don't know what the MS official stance is, but I don't know that it
matters in that every company is different. It's true that Exchange is a
pretty crappy file server - and with E2003 Standard you will soon run out of
space if people decide to keep everything forever in there. That's a pretty
good argument against using it as a file server right there.

There are third party products that can strip out attachments (changing them
to links) so you can store the files in your actual *file* server. Try
google or searching www.slipstick.com for some options. And for really large
attachments...your company should probably invest in an FTP server so that
your clients can upload/you can download and vice versa.

I don't know how to let a recipient know that an inbound message bounced due
to a size limit - they'll certainly get another email or phone call from the
sender, though.

If your management wants to keep things as they are, migrating to E2007
might be a good idea due to the store limit increase (essentially
unlimited). But you'll still have hardware/disk space issues and will have
to be able to back up and restore your data within a reasonable timeframe.
Author
7 May 2009 12:53 PM
Mike Sharp
Show quote Hide quote
"Lanwench [MVP - Exchange]" wrote:

> I'm setting up my reply to crosspost to exchange.admin, as that group gets a
> lot more traffic and you'll probably have more replies that way.
>
> I don't know what the MS official stance is, but I don't know that it
> matters in that every company is different. It's true that Exchange is a
> pretty crappy file server - and with E2003 Standard you will soon run out of
> space if people decide to keep everything forever in there. That's a pretty
> good argument against using it as a file server right there.
>
> There are third party products that can strip out attachments (changing them
> to links) so you can store the files in your actual *file* server. Try
> google or searching www.slipstick.com for some options. And for really large
> attachments...your company should probably invest in an FTP server so that
> your clients can upload/you can download and vice versa.
>
> I don't know how to let a recipient know that an inbound message bounced due
> to a size limit - they'll certainly get another email or phone call from the
> sender, though.
>
> If your management wants to keep things as they are, migrating to E2007
> might be a good idea due to the store limit increase (essentially
> unlimited). But you'll still have hardware/disk space issues and will have
> to be able to back up and restore your data within a reasonable timeframe.

Thank you for your response and also for the tip-off regarding Exchange.admin.

Is there a known reason that NDR's are not able to be copied to the original
recipient? the problem we have is that the tender documents are usually being
sent out en mass to a distribution list and the people tendering the work
don't seem to care if we get the documents or not, I suppose its a case of
one less tender to wade through when they have to decide on a contractor for
the job.

informing users that they have failed to receive an attachment from an
external sender would be half way to winning the battle, I could always use a
Gmail account or similar as a work around for large attachments.

Could I use VB script to filter the NDR's and generate an alert based on
attachment size and the mailbox to which the message has failed to reach????

Again thanks for your help and I hope I can convince the powers that be that
having several mail boxes in excess of 4gb is not a healthy thing for our
mail server.

I trust I can find out some more info from the rest of the community here
and put together a decent proposal that enables us to function and keep
everyone as happy as possible.