I work for a 1,000 user organisation. We have a brand new Exchange 2003 Organisation built on a
native Windows 2003 AD environment. Our Exchange setup is as follows:
1 x Active/Passive Exchange 2-node cluster
2 x Exchange Front End Servers (in a standard NLB configuration)
At the Global Setting level,
under Message Delivery I have specified an upper limit for both Sending and Receiving Message Size: 15,000 KB (15 MB) each.
On each of the Default Virtual SMTP Server objects (3 in total), under Properties>Message Delivery, Limit Message
Size is also set to 15,000 KB (15Mb).
As per KB article: http://support.microsoft.com/kb/322679 (Example 2), we
have raised individual user limits for a few users to 30,000KB (30 MB), however these users are still being limited by the
global setting. The above article says the opposite should be happening
I've had the MS boys on the case, and
they too are stumped (either that or totally clueless). So my Question… According to:
example, the following size limits have been configured:
The global setting is set to 2 MB.
2000 SMTP connector is set to 5 MB.
The SMTP virtual server is set to 2 MB.
The user mailbox setting is set to 3
The global setting is 2 MB. Therefore, all the users who are using the default global setting in the Exchange
2000 Server organization or in the Exchange Server 2003 organization are limited to sending and receiving messages that are a
maximum of 2 MB. If an individual user has a mailbox setting of 3 MB, that user overrides the global setting.
Note All Internet e-mail messages use the global setting for limits on sending and on receiving. The message categorizer
evaluates the sender's sending limit and the recipient's receiving limit. In example 2 earlier, a user with a user mailbox
limit of 3 MB could receive messages from another user with a 3-MB sending limit. Because Internet users use the global
setting, they can send only a 2-MB message. "
Should the limit that I have set at the user account level be the
I think this whole thing is hit and miss. Put it in a test lab at MS and it works, put it in a
real organisation with a thousand users with real demands and requirements and you can forget it!