Note: 

  • You must be the owner of the group.
  • You are modifying an organization wide Distribution Group

Step 1: Go to outlook.office.com and sign in 

 

Step 2: Click the Settings (gear icon) 

 

Step 3: Click General > Distribution groups > this portal. 

 

Step 4: Under Groups I own, select the group you want to modify. 

 

Step 5: Go to the Members section. Click View all and manage members. 

  • To add: click Add members, search for names, select them, and click Add.
  • To remove: locate a member, select the member, click Delete, click Yes to confirm.