Exchange 2003 Mail Limits

Exchange 2003 has many nooks and crannys that have to be known when you want to limit email size. Here are the four locations that I know of:

1. Exchange SMTP
2. Exchange Global Settings
3. User Settings
4. Windows 2003 Server IIS SMTP

1. Exchange SMTP. MMC–>Console_Root\Domain_(Exchange)\Administrative_Groups \MailDomain \Servers \ServerName \Protococols \SMTP \Default SMTP Virtual Server –> properties –> Messages tab. This one affects incoming message size from the Internet.

2. Exchange Global Settings. MMC–>Console_Root\Domain_(Exchange)\Global_Settings\Message_Delivery –> properties –> Defaults tab. This one is applied secondly to incoming messages from the Internet. It is also the primary setting for internal mail limits. It can be overridden per user.

3. User Settings. MMC –>Console_Root \Active_Directory_Users_and_Computers[ad.domain.com] \domain.com \Users \Administrator –>Properties –>Exchange_General_Tab –>Delivery_Restrictions. This can be used to override the global settings for power users.

4. Windows 2003 Server IIS SMTP. MMC –>Console_Root \Internet_Information_Services_(IIS6)_Manager \Windows2003Server \Default_SMTP_Virtual_Server –>properties –>Messages_tab. This was only used by me temporarily because our pop clients needed the old Mail 55 style of login that isn’t compatible with Mail2003. Our pop users used this for their outgoing mail to the corporate headquarters and out to the Internet. This is similar to the first location, but is managed in an entirely different place.

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