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date: Fri, 18 Jul 2008 09:55:51 +0100,    group: microsoft.public.exchange.misc        back       


HT and very large attachments   
Hi Folks,

Exchange 2007 Sp.
Our send recieve limits are 26mb.

We had a user last week that tried to send himself all his pst's as he was 
leaving.
the email was approx 500mb+ and this brought down the exchange server for 
about 4 hours.
I ended up deleting the queue to get this fixed .
My question is there a way from preventing exchange from trying to process a 
message\attachement above the 26mb.
Without exchange trying to process the message first before bouncing it back 
with the NDR that the message is too big?

Thanks
date: Fri, 18 Jul 2008 09:55:51 +0100   author:   IT

Re: HT and very large attachments   
I don't know where you set the limit, but have you tried setting it on each 
mailbox?  Still, note my autosignature.
-- 
Ed Crowley MVP
"There are seldom good technological solutions to behavioral problems."
.

"IT"  wrote in message 
news:uHlkVQL6IHA.2064@TK2MSFTNGP02.phx.gbl...
> Hi Folks,
>
> Exchange 2007 Sp.
> Our send recieve limits are 26mb.
>
> We had a user last week that tried to send himself all his pst's as he was 
> leaving.
> the email was approx 500mb+ and this brought down the exchange server for 
> about 4 hours.
> I ended up deleting the queue to get this fixed .
> My question is there a way from preventing exchange from trying to process 
> a message\attachement above the 26mb.
> Without exchange trying to process the message first before bouncing it 
> back with the NDR that the message is too big?
>
> Thanks
>
>
>
>
date: Fri, 18 Jul 2008 08:20:28 -0400   author:   Ed Crowley [MVP]

Re: HT and very large attachments   
No,

The user does get an NDR saying that the mail is too big, but in the 
meantime while the Exchange Transport server is trying to process the large 
mail it falls over

Resource pressure increased from Normal to High.



Resource utilization of the following resources exceed the normal level:

Version buckets = 431 [High] [Normal=40 Medium=60 High=100]



Back pressure caused the following components to be disabled:

Inbound mail submission from Hub Transport servers

Inbound mail submission from the Internet

Mail submission from the Pickup directory

Mail submission from the Replay directory

Mail submission from Mailbox servers

Mail delivery to remote domains




"Ed Crowley [MVP]"  wrote in message 
news:%232JPrCN6IHA.2348@TK2MSFTNGP06.phx.gbl...
>I don't know where you set the limit, but have you tried setting it on each 
>mailbox?  Still, note my autosignature.
> -- 
> Ed Crowley MVP
> "There are seldom good technological solutions to behavioral problems."
> .
>
> "IT"  wrote in message 
> news:uHlkVQL6IHA.2064@TK2MSFTNGP02.phx.gbl...
>> Hi Folks,
>>
>> Exchange 2007 Sp.
>> Our send recieve limits are 26mb.
>>
>> We had a user last week that tried to send himself all his pst's as he 
>> was leaving.
>> the email was approx 500mb+ and this brought down the exchange server for 
>> about 4 hours.
>> I ended up deleting the queue to get this fixed .
>> My question is there a way from preventing exchange from trying to 
>> process a message\attachement above the 26mb.
>> Without exchange trying to process the message first before bouncing it 
>> back with the NDR that the message is too big?
>>
>> Thanks
>>
>>
>>
>>
>
>
date: Fri, 18 Jul 2008 21:16:04 +0100   author:   IT

Re: HT and very large attachments   
You missed my point.  The correct fix is for someone in upper management to 
make an example of the miscreant who saw fit to send a 500+MB attachment, 
like taking his e-mail away and notifying everyone in the company that they 
have to send mail to him in writing.

Here's documentation on the back pressure issue.  Maybe you can tune your 
server to accommodate this kind or problem.
http://technet.microsoft.com/en-us/library/bb201658(EXCHG.80).aspx
-- 
Ed Crowley MVP
"There are seldom good technological solutions to behavioral problems."
.

"IT"  wrote in message 
news:uVWpPMR6IHA.4596@TK2MSFTNGP03.phx.gbl...
> No,
>
> The user does get an NDR saying that the mail is too big, but in the 
> meantime while the Exchange Transport server is trying to process the 
> large mail it falls over
>
> Resource pressure increased from Normal to High.
>
>
>
> Resource utilization of the following resources exceed the normal level:
>
> Version buckets = 431 [High] [Normal=40 Medium=60 High=100]
>
>
>
> Back pressure caused the following components to be disabled:
>
> Inbound mail submission from Hub Transport servers
>
> Inbound mail submission from the Internet
>
> Mail submission from the Pickup directory
>
> Mail submission from the Replay directory
>
> Mail submission from Mailbox servers
>
> Mail delivery to remote domains
>
>
>
>
> "Ed Crowley [MVP]"  wrote in message 
> news:%232JPrCN6IHA.2348@TK2MSFTNGP06.phx.gbl...
>>I don't know where you set the limit, but have you tried setting it on 
>>each mailbox?  Still, note my autosignature.
>> -- 
>> Ed Crowley MVP
>> "There are seldom good technological solutions to behavioral problems."
>> .
>>
>> "IT"  wrote in message 
>> news:uHlkVQL6IHA.2064@TK2MSFTNGP02.phx.gbl...
>>> Hi Folks,
>>>
>>> Exchange 2007 Sp.
>>> Our send recieve limits are 26mb.
>>>
>>> We had a user last week that tried to send himself all his pst's as he 
>>> was leaving.
>>> the email was approx 500mb+ and this brought down the exchange server 
>>> for about 4 hours.
>>> I ended up deleting the queue to get this fixed .
>>> My question is there a way from preventing exchange from trying to 
>>> process a message\attachement above the 26mb.
>>> Without exchange trying to process the message first before bouncing it 
>>> back with the NDR that the message is too big?
>>>
>>> Thanks
>>>
>>>
>>>
>>>
>>
>>
>
>
date: Fri, 18 Jul 2008 22:00:05 -0400   author:   Ed Crowley [MVP]

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