Chapter 27. Internet and Email
Email has been around for nearly 30 years, but only in the last 10 years has it become a business-essential tool. One of the reasons that email is now so essential is that we can send and receive email with people outside our own organization.
Configuring Exchange to reliably send email to the Internet and to reliably receive email from the Internet is one of your most important configuration tasks. Notice that we used the word "reliably"; simply standing up an Exchange server and creating a send connector is no guarantee you will deliver mail reliably. Further, registering a mail exchanger (MX) record with your Internet DNS is also no guarantee that you will receive all the email you are supposed to receive.
In this ...
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