We are using exchange server 2003. Very often we receive large emails
(15mb+) from clients sent to a group of recipients.

What's the best way to have some sort of filter (preferably on the
exchange server) that does following to save some mailbox space:

IF ((ATTACHMENT_SIZE > 10MB) AND (NUMBER_OF_RECIPIENTS > 1)) THEN
SEND EMAIL ONLY TO THE 1ST RECIPIENT
END IF

also

IF ((ATTACHMENT_SIZE > 10MB) AND (NUMBER_OF_RECIPIENTS > 1)) THEN
1. STRIP THE ATTACHMENT TO C:\ATTACHMENTS
2. LET THE EMAIL GO THROUGH
3. SEND A NEW EMAIL TO ALL RECIPENTS NOTIFYING OF
THE ATTACHMENT STRIPPED
END IF

Thanks in advance for any help/suggestions.

Re: Filter large incoming emails by Mark

Mark
Tue Jan 30 02:22:41 CST 2007

On 29 Jan 2007 22:41:53 -0800, "DejaUser" <dejauser@safe-mail.net>
wrote:

>We are using exchange server 2003. Very often we receive large emails
>(15mb+) from clients sent to a group of recipients.
>
>What's the best way to have some sort of filter (preferably on the
>exchange server) that does following to save some mailbox space:
>
>IF ((ATTACHMENT_SIZE > 10MB) AND (NUMBER_OF_RECIPIENTS > 1)) THEN
> SEND EMAIL ONLY TO THE 1ST RECIPIENT
>END IF
>
>also
>
>IF ((ATTACHMENT_SIZE > 10MB) AND (NUMBER_OF_RECIPIENTS > 1)) THEN
> 1. STRIP THE ATTACHMENT TO C:\ATTACHMENTS
> 2. LET THE EMAIL GO THROUGH
> 3. SEND A NEW EMAIL TO ALL RECIPENTS NOTIFYING OF
> THE ATTACHMENT STRIPPED
>END IF
>
>Thanks in advance for any help/suggestions.

Do you understand that if a single message comes in for more than one
recipient and has a large attachment you are not going to get multiple
copies of that attachment, right?

What are you trying to do?
If you want to limit attachment size then set an SMTP limit but make
sure you set the limit to be 30% higher than the number you want to
stop because messages grow whilst in transit.

Not sure why you want to limit the number of people a message comes
into. You can't actually limit a message sent to say 10 people and
only deliver it to 5. Which 5? who loses out? You'll fail anyway
because your internal users will just forward the message anyway.

I think you've missed a little bit about how Exchange works and have
then wrapped that misunderstanding up into a legitimate message size
question.