How to block outgoing email

Written by krista martin
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How to block outgoing email
Blocking outgoing e-mail will prevent workers from engaging in unrelated activities during work hours. (office 2 image by Omely from

Microsoft Exchange is an e-mail program that will allow you to block outgoing e-mails. Some workplaces opt to configure the delivery restriction of the email service to ensure their employees aren't engaging in e-mail activity unrelated to work, and blocking outgoing e-mail is one way to ensure this. The email settings can be configured to block outgoing e-mails to the preference of the user, for example, allowing internal e-mails but not permitting external e-mails.

Skill level:


  1. 1

    Click "Start" and select "Exchange Management Console" from the Start menu.

  2. 2

    Click "Recipient Configuration."

  3. 3

    Click "Properties" under the recipient that you want to configure the restriction for.

  4. 4

    Click "Mail Flow Settings" tab and select "Message Delivery Restrictions" from the list.

  5. 5

    Click "Properties." You will see several options.

  6. 6

    Check the box for "Require That All Senders Are Authenticated" if you want to reject messages from external senders.

  7. 7

    Check the box for "Only Senders in the Following List" if you want to specify which outgoing e-mail addresses can be received.

  8. 8

    Check the box for "No Senders" which will not reject any outgoing e-mails.

  9. 9

    Check the Box for "Senders in the Following List," which will prevent the recipient from receiving e-mails from the senders specified.

  10. 10

    Click "OK."

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