If you’re not receiving emails on your Microsoft 365 (Microsoft Business Email) account, here’s a targeted step-by-step checklist to investigate and resolve the issue:

✅ Microsoft 365 Email – Not Receiving Emails Troubleshooting

🔹 1. Check DNS & MX Records

• Go to your domain registrar/DNS manager and ensure MX records are correctly set for Microsoft 365:

MX → yourdomain-com.mail.protection.outlook.com (Priority: 0)

• Also verify:
  • SPF record: v=spf1 include:spf.protection.outlook.com -all
  • CNAME/Autodiscover and TXT/verification records exist

Test via:

nslookup –type=mx yourdomain.com

Or use: Microsoft DNS Checker

🔹 2. Microsoft 365 Admin Center

• Login to admin.microsoft.com
• Check:
  • User mailbox is active and licensed
  • No email delivery restrictions on mailbox
  • No mail forwarding or inbox rules causing redirection
  • Email is not hitting quarantine or junk folder

🔹 3. Use Message Trace Tool

• Go to Microsoft 365 Admin Center > Exchange Admin Center > Mail Flow > Message Trace
• Search for recent failed deliveries

🔹 4. Check Email Routing (If hybrid setup)

• If you’re using third-party DNS hosting or previous cPanel hosting:
  • Ensure Email Routing is NOT set to “Local Mail Exchanger” in cPanel
  • cPanel → Email Routing → Set to Remote Mail Exchanger

🔹 5. Test Email Reception

• Send test emails from:
  • Gmail / Outlook / other external accounts
• Check bounce-back/NDR message (if any) — it will give clues

🔹 6. Firewall / Port Blocking (rare)

• Ensure that your network or ISP is not blocking Microsoft IPs (outbound SMTP/IMAP ports).

🔹 7. Mailbox Quarantine or Spam Filter

• Use https://security.microsoft.com → Email & collaboration > Review > Quarantine
• Emails might be stuck in quarantine

====================================================================

Here’s a DNS template for Microsoft 365 (Microsoft Exchange Online) setup — you can use this to configure DNS records in your domain registrar or DNS provider (e.g., domain registrar, Cloudflare, cPanel, etc.).

📘 Microsoft 365 DNS Template

Replace yourdomain.com with your actual domain.

🔹 1. MX Record (Mail Routing)

You’ll get the exact MX value from Microsoft 365 Admin Center → Setup → Domains.

🔹 2. SPF (TXT Record)

🔹 3. DKIM (CNAME Records)

These are generated per domain. You’ll need to enable DKIM in Microsoft 365 Security & Compliance portal before records appear.

🔹 4. DMARC (Optional but Recommended)

For stricter policies, change p=none to p=quarantine or p=reject.

🔹 5. Autodiscover (CNAME)

🔹 6. MS Verification TXT Record (Used for domain verification)

Found in Microsoft 365 Admin > Setup > Domains > Verification

✅ Notes:

• TTL (Time to Live) can usually be left at default (e.g., 3600 seconds).
• After adding all records, go to Microsoft 365 → Admin → Domains → Check DNS status.
• Use tools like mxtoolbox.com or nslookup to verify.