Supporting Messaging Clients

Set Delivery Restrictions

Use the Defaults tab to set message size and recipient limits for all mailboxes in your organization. You can conserve system resources by limiting the size of messages circulating in your organization, because larger messages are more difficult to process and more likely to cause bottlenecks in the Exchange routing engine. A message with many recipients can also tax your system with directory lookups and delivery connections.

Message size limits can apply to inbound or outbound messages, or both. Recipient limits apply to all messages.

Important   All the global settings here will be overridden by per-user settings made on individual mailboxes.

To set global message delivery restrictions:

  1. Start System Manager
    On the Start menu, point to Programs, point to Microsoft Exchange, and then click System Manager.
  2. Double-click Global Settings.
  3. Right-click Message Delivery, and then click Properties.
  4. On the Defaults tab, you can set the following options:

Related Topics

Managing Recipients Working with Default Settings