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Microsoft Exchange Server 2013 High Availability by Nuno Mota

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Chapter 5. Transport High Availability

Transport high availability seems to be one of those areas that Exchange Administrators do not really worry about—they just assume that an e-mail, once in Exchange, will always be delivered as long as the target mailbox is available. However, what if a server trying to send a newsletter to 40 recipients fails all of a sudden? What happens to those 40 e-mails? High availability for the Exchange transport pipeline is crucial to guarantee that no e-mails are lost while in transit. This is also very important in large deployments with dozens of servers, where e-mails sometimes cross countries before being delivered to their destination mailbox.

Before we delve into how Exchange 2013 further improves transport ...

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