Exchange 2007 Default Mail Configuration

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During setup, Exchange features are configured using the Connect to Internet, and Set Up Your Internet Address Wizards. Between the Exchange Server defaults and the changes that the wizards make, the following are the settings a newly configured server will have:

Deleted Item and Mailbox Retention—By default, deleted messages are kept for 30 days, and deleted mailboxes are retained for 30 days.  

Mailbox Limits—The default mailbox size cap is 2.3GB. The users are warned when their mailboxes reach 1.9GB, and sending is prohibited when the size reaches 2GB. When a mailbox reaches the cap, it will no longer store new incoming mail, but will bounce the mail with an error message.  

Circular Logging—Enabled by default, it will be disabled after the Backup Configuration Wizard is run. Until the Backup Configuration Wizard is run, logs will automatically be deleted over time to save disk space. A normal backup automatically purges transaction logs so that circular logging is not needed.  Idle User Sessions—Outlook Web Access sessions time out after 20 minutes.  

SMTP Connector—By default, the server is set up to route mail to the Internet using DNS. To configure the server to use a smart host, run the Configure a Smart Host for Internet E-Mail Wizard.

 E-Mail Address Policy—During setup, the Set Up Your Internet Address Wizard should have been run and all e-mail addresses should be configured to use your public Internet domain name.  

POP3 Connector—By default, the POP3 Connector used to download e-mail from an ISP is not set up. In many scenarios, using the POP3 Connector is not necessary for inbound and outbound mailflow. To configure the POP3 Connector, go to the Network tab in the SBS Manager and choose POP3 Connector under the Connectivity tab there.  

Exchange Features Enabled per User—By default, every feature is enabled for every user. That includes Outlook Web Access, Outlook Anywhere, Exchange ActiveSync, MAPI (standard Outlook access method), POP3, and IMAP. The latter two are enabled, but the actual server services that they would depend on are not enabled by default.  

Transport Rules—These enable you to apply “special handling” to specific types and classes of messages that are entering or leaving your server. That might include appending disclaimers, adding a cc: to another address, blocking certain messages, and a variety of other actions. By default, there are no rules in place after the initial setup.  

Online Defrag—Exchange automatically runs an online mail and public folder database defrag every night. That process rearranges database pages in the databases in order to create larger blocks of contiguous empty space. By default, online defrag runs between 1 a.m. and 5 a.m. nightly. Normally, you want to configure your backup schedule not to be happening at the same time, because on online backup of Exchange stops any online defrag process that is running.

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