Block or unblock senders

Please follow the instructions below on how you can block or unblock e-mail addresses in Outlook. Outlook will automatically move messages from the blocked sender into the junk e-mail folder. This can be useful to reduce the amount of spam and potentially harmful content in your inbox.

Note:聽We no longer provide technical support for Apple Mail as it is not compatible within our Microsoft 365 environment. Please use the free Outlook app for both macOS and iOS devices.聽

Block or Unblock Senders for Windows

Outlook for Windows (New)

Blocking senders:

  1. In New Outlook, select and right-click on the e-mail you would like to add to the blocked senders list.
  2. From the dropdown menu, click 鈥淏濒辞肠办鈥 and then 鈥淏lock sender鈥.

Unblocking senders:

  1. In New Outlook, click the 鈥沦别迟迟颈苍驳蝉鈥 gear icon on the top right corner.
  2. Click 鈥淢补颈濒鈥 on the left-hand side.
  3. Click 鈥淛unk email鈥 from the list.
  4. Under the 鈥沦别苍诲别谤蝉鈥 heading, click the 鈥淏locked senders and domains鈥 tab.
  5. Hover your cursor over the e-mail address you would like to unblock and click the trash can icon on the right to remove them from the blocked senders list.
  6. Click 鈥厂补惫别鈥 to save your changes.

Outlook for Windows (Old)

Blocking senders:聽

  1. In Classic Outlook, select and right-click on the e-mail you would like to add to the blocked senders list.
  2. From the dropdown menu, click 鈥淏濒辞肠办鈥 and then 鈥淏lock Sender鈥.

Unblocking senders:

  1. In Classic Outlook, click the 鈥淗辞尘别鈥 tab on the top file menu.
  2. In the Delete section, click on 鈥淏濒辞肠办鈥.
  3. In the dropdown menu, click 鈥淛unk E-mail Options鈥︹.
  4. A new window will pop open. Click the 鈥淏locked Senders鈥 tab.
  5. Click the e-mail address you want to unblock and click 鈥凌别尘辞惫别鈥 to remove them from the blocked senders list.
  6. Click 鈥淎辫辫濒测鈥 and then click 鈥淥碍鈥 to save your changes.

Block or Unblock Senders for Mac

Outlook for Mac (New)

Blocking senders:

  1. In New Outlook, select and right-click on the e-mail you would like to add to the blocked senders list.
  2. From the dropdown menu, click 鈥淏濒辞肠办鈥.
  3. A confirmation window will popup, click 鈥淥碍鈥.

Unblocking senders:

  1. In New Outlook, click the 鈥淥耻迟濒辞辞办鈥 tab in the top file menu.
  2. From the dropdown menu, click 鈥沦别迟迟颈苍驳蝉鈥︹赌.
  3. A new window will pop out, click 鈥淛耻苍办鈥.
  4. Click the 鈥淏locked Senders鈥 tab.
  5. Click on the e-mail address you want to unblock and then click the 聽鈥-鈥 icon to remove them from the blocked senders list.

Outlook for Mac (Old)

Blocking senders:

  1. In Legacy Outlook, select and right-click on the e-mail you would like to add to the blocked senders list.
  2. From the dropdown menu, click 鈥淛unk Mail鈥 and then 鈥淏lock Sender鈥.

Unblocking senders:

  1. Login to the Outlook Web App.
  2. On the top right corner, click the 鈥沦别迟迟颈苍驳蝉鈥 gear icon.
  3. Click 鈥淢补颈濒鈥 on the left-hand side.
  4. Click 鈥淛unk email鈥 from the list.
  5. Under the 鈥沦别苍诲别谤蝉鈥 heading, click the 鈥淏locked senders and domains鈥 tab.
  6. Hover your cursor over the e-mail address you want to unblock and click the trash can icon on the right to remove them from the blocked senders list.
  7. Click 鈥湷Р贡贡疴 to save your changes.

Block or Unblock Senders for Outlook Web App

Outlook Web App

Blocking senders:

  1. Login to the Outlook Web App.
  2. On the top right corner, click the 鈥沦别迟迟颈苍驳蝉鈥 gear icon.
  3. Click 鈥淢补颈濒鈥 on the left-hand side.
  4. Click 鈥淛耻苍办鈥 email from the list.
  5. Under the 鈥沦别苍诲别谤蝉鈥 heading, click the 鈥淏locked senders and domains鈥 tab.
  6. Click 聽鈥+ Add blocked sender鈥 and enter e-mail address you would like to block.
  7. Click 鈥湷Р贡贡疴 to save your changes.

Unblocking senders:

  1. Login to the Outlook Web App.
  2. On the top right corner, click the 鈥沦别迟迟颈苍驳蝉鈥 gear icon.
  3. Click 鈥淢补颈濒鈥 on the left-hand side.
  4. Click 鈥淛unk email鈥 from the list.
  5. Under the 鈥沦别苍诲别谤蝉鈥 heading, click the 鈥淏locked senders and domains鈥 tab.
  6. Hover your cursor over the e-mail address you want to unblock and click the trash can icon on the right to remove them from the blocked senders list.
  7. Click 鈥湷Р贡贡疴 to save your changes.