Step 1: Launch Outlook for Mac
Step 2: Click Tools > Accounts
Step 3: Add Email Account
Step 4: Fill in the information as the image below
Replace name, yourdomain, and password with your actual webmail username, domain name, and password
Step 5: Click Advance > UNTICK “Leave a copy of each Message on Server” > Click OK
Step 5: That’s it! You’re done. You can send and receive webmails now.