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You can configure the news service to support multiple newsfeeds through either push feeds or pull feeds. With a push feed, your provider's host computer initiates newsfeeds to your Microsoft Exchange Server computer. Push feeds are better than pull feeds for handling large newsfeeds. However, a push feed requires more interaction between you and your newsfeed provider because your provider controls which newsgroups you receive.

With a pull feed, your Microsoft Exchange Server initiates connections and delivers messages to host computers in your provider's site. Pull feeds also check for new messages and retrieve them. Pull feeds work well for small newsfeeds and over dial-up connections.

The following illustration shows the difference between push and pull feeds.

You can configure inbound and outbound newsfeeds as follows:

Inbound newsfeeds
Outbound newsfeeds