Right-click a connector, and then click Properties.
Click the Content Restrictions tab.
Under Allowed priorities, select or clear any
combination of the High, Normal, or Low check
boxes to specify priorities for outgoing messages that will be
delivered through the connector. By default, all messages with any
priority will be delivered. If you clear one of the check boxes, no
messages with that priority will be delivered through the
connector. For example, if you clear the Low check box, no
messages with low priority will be delivered through the
Under Allowed types, select or clear any combination of
the System messages or Non-system messages check
boxes to specify types of messages that will be delivered through
this connector. By default, all message types will be delivered.
System messages are messages from the Exchange or Windows 2000
system, rather than messages from users. Examples of system
messages are directory replication messages, public folder
replication messages, Exchange Monitoring Tool messages, delivery
reports, and non-delivery reports. Non-system messages are messages
from users, groups, and contacts.
Under Allowed sizes, you can set a maximum size for
outgoing messages delivered through a connector. Select the Only
messages less than (KB) check box, and then enter the maximum
message size in kilobytes in the text box. By default, there is no
limit on message size.