Easily block multiple sender domains at once in Outlook

The method described above instructs you on how to block domains, which results in the creation of the Block Sender Domains rule. In this section, we will show you how to manage that rule, including how to add, edit, or delete blocked domains. Please proceed as follows.

1. Click Kutools > Junk > Manage Junk Email Filter to open the Junk dialog box.

2. In the Junk dialog box, select the Block Sender Domains rule, and click on the domains underlined in blue.

3. Now the Text Contains dialog box opens. Here, you can add new domains to block, or edit or delete existing ones. Simply tick or untick the listed domains to block or unblock them. Once done, click OK to save the changes.

4. Now we are back to the Manage Junk Email Filter dialog. We can see the updated blocked sender domains in the Rule description box. Click OK to close the dialog.

Notes:

• Make sure the Junk Email Filter is turned on for the Block Sender Domains rule to take effect.
• To disable the Block Sender Domains rule, please navigate to Junk > Manage Junk Email Filter, uncheck the rule and click OK.
• To disable the Junk filter, click the Junk button. Tip: You can toggle the button to switch the filter on or off.
  
• Check the Rule description wrap display option, so that if a rule description is too long to fit in one line of the window, it will wrap to the next line.
• The rules in the Junk dialog box are executed from top to bottom: For example, if an email meets the conditions set in the first rule, it will be immediately moved to the Junk Email folder, then the following rules will not be applied on this email. If the first rule is a never block rule, when an email meets the conditions in this never block rule, it will remain in the Inbox folder even if it meets the conditions in the following block rules.