Microsoft Office 365


Setting up a domain and email in Microsoft 365 Admin Center involves verifying your domain, configuring DNS settings, and setting up email services in Exchange Online. The process begins by adding your domain to the Admin Center and verifying ownership using a TXT record from your domain registrar. Once verified, essential DNS records (MX, CNAME, SPF, and SRV) must be updated to ensure proper email routing and service functionality. After DNS configuration, users can be created, assigned licenses, and configured for Exchange Online to send and receive emails. Additional security measures, such as multi-factor authentication (MFA) and mail flow rules, can be implemented to enhance email security. Proper configuration ensures seamless email communication and integration with Microsoft 365 services.





Configuring a domain and email in Office 365 (Microsoft 365) Admin involves several steps, including domain verification, DNS setup, and email configuration. Here’s a step-by-step guide:

Add and Verify Your Domain

Sign in to Microsoft 365 Admin Center

Go to admin.microsoft.com

Sign in with your admin credentials.

Go to the “Setup” Section

In the left panel, click “Settings” > “Domains”.

Click “Add Domain”.

Enter Your Domain Name

Type the domain you want to add (e.g., yourdomain.com).

Click “Use This Domain”.

Verify Your Domain

Microsoft provides a TXT record.

Copy the TXT record and add it to your domain registrar’s DNS settings (GoDaddy, Namecheap, Cloudflare, etc.).
After adding the TXT record, return to Microsoft 365 and click “Verify”.


Configure DNS Records

Once the domain is verified, Microsoft will prompt you to update the required DNS records for email and other services.

MX Record (Mail Exchanger)

This routes emails to Microsoft 365.

Example:

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Host: @
Points to: .mail.protection.outlook.com
TTL: 3600
Priority: 0

CNAME Records

Used for Autodiscover and other services.

Example:
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Name: autodiscover
Target: autodiscover.outlook.com
TTL: 3600

TXT Record (SPF – Sender Policy Framework)

Helps prevent email spoofing.
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Name: @
Value: v=spf1 include:spf.protection.outlook.com -all
TTL: 3600

SRV Records (Skype and Teams Services)
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Name: _sip._tls
Target: sipdir.online.lync.com
TTL: 3600

After adding these records, return to Microsoft 365 and click “Verify”.


Set Up Users and Emails

Create User Accounts

Go to Admin Center > Users > Active Users.

Click “Add a User”.

Fill in the user’s details and assign a Microsoft 365 license.

Set Up Email (Exchange Online)

Go to Exchange Admin Center (admin.exchange.microsoft.com).

Configure mail flow rules, spam filtering, and security settings as needed.

Test Email Delivery

Send a test email to ensure proper configuration.


Additional Configurations (Optional)

Enable Multi-Factor Authentication (MFA) for security.

Set Up Email Signatures and Disclaimer in Exchange Online.

Configure Email Forwarding or Aliases for specific users.



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