Increasing message size in Exchange 2010 from 10mb?

10 pts.
Tags:
Exchange 2010
Exchange 2010 Administration
Exchange 2010 configuration
Exchange 2010 support
Windows
Windows Server 2008
Windows Server 2008 64-bit
I'm trying to set outgoing and incoming external email to unlimited. I realize there is a 2GB limit on internal email also setting internal to those limits. Here is what I have done so far: I have used Set-TransportConfig to set incoming and outgoing external to Unlimited. Set the internal to 2GB. I've used ADSIEdt to set internal to 2GB and external to 20GB. Also set in the EMC the same controls. My end users still cannot send or receive anything over 10mb and this has to be increased due to company policy. What other steps are needed? Where can I check to find this 10mb limit?

Software/Hardware used:
Exchange 2010 on Server 2008 standard. 64-bit
ASKED: September 16, 2010  4:09 PM
UPDATED: September 24, 2010  7:16 PM

Answer Wiki

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Are you sure you want to set Message size to 20GB? That seems a little excessive however to set message size check this link applies to Exchange 2007 but the same page for 2010 is not available yet

http://technet.microsoft.com/en-us/library/bb124345(EXCHG.80).aspx

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  • Technochic
    Also keep in mind that it does not matter what you set YOUR limit to, if the recipient's limit is set to 10MB you will not be able to send them anything larger than that. Typical email limits are either 5MB or 10MB to external accounts. You can set your internal limits to whatever you need. Also as far as receiving, if the external account cannot send anything larger than 10MB your internal users will not get anything larger than that from that external account.
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  • TomLiotta
    10MB is about as much as I would allow an e-mail server to process nowadays. Just a few years ago, I wouldn't have allowed more than 1MB. The growth in system capabilities at lower costs have helped. However, e-mail servers are not efficient file transfer servers. They are technically not capable of transferring most files. That's why technologies such as MIME were developed, to convert files into forms that e-mail servers will accept. If large files need to be sent, then use a server that is designed for it. Use FTP for example. The massive waste of resources in encoding and decoding large files for transport over SMTP, along with the waste of network bandwidth and the unpredictability of delivery, makes this a very questionable effort. Tom
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  • Bigbaddude
    How is exchange server 2010 compared to 2007. Is it easier to install use?
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