Here are simple, user-friendly steps to mark an email sender as safe** across all Outlook versions** your users are likely to use.

✅ Outlook Classic (Desktop – Windows)

Best for traditional Outlook app

Method 1: From an email (quickest)

1. Open the email from the sender
2. Click Junk (top ribbon)
3. Select Never Block Sender

✅ The email address is now trusted.

Method 2: Add manually

1. Go to Home tab
2. Click Junk → Junk E-mail Options
3. Select Safe Senders tab
4. Click Add
5. Enter the email address or domain (e.g. example.com)
6. Click OK

✅ Outlook (New Outlook for Windows)

Modern Outlook app experience

From an email

1. Open the email
2. Click the three dots (…) in the toolbar
3. Select Block → Never Block Sender

Add via Settings

1. Click Settings (⚙)
2. Go to Mail → Junk email
3. Under Safe senders and domains, click Add
4. Enter the email address or domain
5. Press Enter, then Save

✅ Outlook on the Web (OWA)

Browser-based Outlook (Microsoft 365)

From an email

1. Open the email
2. Click the three dots (…)
3. Select Block → Never block sender

Add via Settings

1. Click Settings (⚙) → View all Outlook settings
2. Navigate to Mail → Junk email
3. Under Safe senders and domains, click Add
4. Enter the email or domain
5. Click Save

✅ Tips (Helpful for users)

• You can whitelist:
  • A single email → user@company.com
  • An entire domain → company.com
• Safe senders override junk filtering but don’t bypass security scanning (spam/malware protections still apply)