Configuring Message Delivery Options
You can use the Message Delivery Properties dialog box to configure the following message delivery options:
Default message delivery options, including message size restrictions for sending and receiving messages, and the maximum number of recipients that a message can have.
SMTP message filtering to control unsolicited commercial e-mail (also known as spam), using sender, connection, and recipient filtering.
For detailed instructions, see How to Access the Message Delivery Properties Dialog Box.