Hello TrulyInbox Users, 👋🏻

We've recently encountered issues with Microsoft blocking emails from our servers, preventing delivery to your inbox.

This guide explains why this happens and provides simple steps to resolve it by adding our IP addresses to your Microsoft 365 Defender portal.

Why are we doing this?

Microsoft has implemented security measures to block emails from certain IP addresses, including ours, to protect users from spam or malicious content. To ensure our emails continue to reach you, it's important to verify that your email system is set up correctly.

One key aspect is ensuring your SPF, DKIM, and DMARC records are properly configured. These records help email providers like Microsoft confirm that an email is legitimate and does not come from a spoofed domain.

You can find more information on setting up these records in the links below:

• SPF Record Setup

• DKIM Record Setup

• DMARC Record Setup

• DNS Record Setup

Steps to Resolve Microsoft IP Issue

To stop Microsoft from blocking our emails, you must add our IP addresses to your allowed list in the Microsoft 365 Defender portal.

Step 1: Log in to Microsoft 365 Defender Portal:

• Go to Microsoft 365 Defender Portal.

• Use your admin credentials to log in.

Step 2: Navigate to Anti-Spam Policies:

• In the left-hand menu, select Email & collaboration.

• Then, go to Policies & Rules > Threat policies > Anti-spam policies.

Step 3: Edit the Connection Filter Policy:

• Look for the Connection filter policy in the Anti-spam policies section.

• Click Edit.

Step 4: Add Our IP Addresses:

• In the Connection filter settings, add the following IP addresses to the allowed list:

44.225.174.251, 
52.35.32.199, 
34.214.154.151, 
44.235.207.58, 
35.162.115.4, 
54.244.221.200, 
52.27.24.173, 
52.89.145.228

Save and Apply Changes:

By following these steps, you'll ensure that Microsoft does not block our emails and that they continue to be delivered successfully to your inbox.

Cheers 🥂

Team TrulyInbox.