Outlook Integration Integration

Why Warm Your Outlook Account?

Microsoft's email ecosystem—including Outlook.com, Hotmail, and Microsoft 365—uses sophisticated filtering to protect users from spam. For senders, this means your emails can easily land in junk folders if your sender reputation isn't established.

WarmySender's automated warmup builds positive sending patterns that Microsoft's algorithms recognize as legitimate. By the time you start campaigns, your Outlook mailbox has the reputation needed for primary inbox placement.

Microsoft 365 Enterprise Support

WarmySender fully supports Microsoft 365 business and enterprise accounts. Whether you're warming a single sales rep's mailbox or an entire team, our OAuth integration works seamlessly with Microsoft's enterprise authentication.

Key enterprise features:

• Compatible with Azure AD authentication
• Works with custom domains on Microsoft 365
• Supports shared mailboxes and aliases
• Respects organizational sending policies

Connecting Outlook to WarmySender

The connection process takes under a minute:

1. Click "Add Mailbox" in your WarmySender dashboard
2. Select Outlook/Microsoft 365
3. Sign in with your Microsoft account
4. Approve the permission request
5. Choose your warmup configuration

Microsoft Sending Limits

Microsoft enforces sending limits that vary by account type:

• Outlook.com: 300 emails per day
• Microsoft 365: 10,000 emails per day (varies by plan)

WarmySender's strategies operate well within these limits while maximizing warmup effectiveness.

Enterprise Security

WarmySender uses Microsoft's OAuth 2.0 for authentication, meeting enterprise security requirements:

• No passwords stored or transmitted
• Tokens encrypted at rest and in transit
• Revocable access at any time
• Audit trail of all warmup activity