How to Block Emails From Undisclosed Recipients

Written by maya austen
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How to Block Emails From Undisclosed Recipients
Creating an e-mail filter to block mail from undisclosed recipients. (Jupiterimages/BananaStock/Getty Images)

Unfortunately there is no foolproof way to block all e-mails from undisclosed recipients. Spammers are constantly adjusting their tactics to try to get around spam controls and into your e-mail's inbox. It's almost impossible to lock them all out. You can, however, significantly reduce the amount of e-mails you receive from undisclosed recipients by creating filters designed to block mail from known spam domains, as well as block all e-mails actually addressed to "undisclosed recipients."

Skill level:
Easy

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Things you need

  • Microsoft Outlook 2010
  • Gmail
  • Yahoo mail

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Instructions

  1. 1

    Launch Microsoft Outlook.

  2. 2

    Open the undisclosed recipients e-mail. Look at the "From" field of the email header. Make a note of the domain name portion of the sender's e-mail address. The domain name is the part of the email address which follows the @ symbol. For instance, in the mock e-mail address spam@example.com, "example.com" is the domain name.

  3. 3

    Go to the "Home" tab. Click "Junk" then select "Junk e-mail" options.

  4. 4

    Click "Add" on the "Block Senders" tab.

  5. 5

    Enter the domain name used by the undisclosed recipient e-mail in the provided field box.

  6. 6

    Click "OK."

  1. 1

    Log into you Gmail account.

  2. 2

    Click the "Create a filter" link (next to the "Search the Web" button). The "Create a filter" dialogue box will open.

  3. 3

    Enter "Undisclosed recipients" in the "To" field. Click "Next Step."

  4. 4

    Select "Delete It." Click "Create Filter."

  1. 1

    Open the "Create a filter" dialogue box.

  2. 2

    Enter the domain name used by the undisclosed recipient e-mail in the "From" field box. Click "Next Step."

  3. 3

    Select "Delete It" Click "Create Filter."

  1. 1

    Log into your Yahoo Mail account.

  2. 2

    Click "Options" in the upper right corner of the window. Select "More Options." In the left-side window panel, select "Filter." Click "New Filter." The "Filters" dialogue box will open.

  3. 3

    Type "Undisclosed Recipients" in the "Filter name" field box and the "Recipients" field box.

  4. 4

    Select "Trash" from the "Move to Folder" drop-down menu. Click "Save Changes."

  1. 1

    Open the "Filters" dialogue box.

  2. 2

    Enter a name for the filter you're creating in the "Filter name" box.

  3. 3

    Type the domain name used by the undisclosed recipient e-mail in the "Sender" field box. Select "Trash" from the "Move to Folder" drop-down menu. Click "Save Changes."

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