Email configuration guide for GSuite, Gmail, Microsoft Office 365, and Proofpoint

For administrators with Remind Hub.

When you upgrade to the Remind Hub, it's important to make sure that all of Remind's domains are on your organization's list of approved email senders so that teachers, students, and parents receive messages. If your organization uses GSuite, Gmail, Microsoft Office 365 or Proofpoint, give these instructions to your IT Director so that they can check your organization's email servers, firewalls and content filters. 

This article contains the following sections:


For a list of email servers and IPs to allow, view our Add Remind domains to Allowlist article. 

GSuite and Gmail 

Make sure you are logged in to Google as an administrator. This will open the Google admin console. 

To add IP addresses to Allowlist:

  1. From the Admin console Home page, go to Apps > Google Workspace > Gmail > Spam, Phishing and Malware.
    • Note: You might find this setting at Apps > Google Workspace > Gmail > Advanced Settings.
  2. On the left, select the top-level organization. This is usually your domain.
  3. On the Spam, phishing, and malware tab, scroll to the Email whitelist setting. Or, in the search field, enter email whitelist.
  4. Enter the Remind IP addresses to the Allowlist. To add more than one IP address, enter an IP range (using CIDR notation) or separate individual IP addresses with commas.
    • Note: Enter public IP addresses only. This setting doesn't support private IP addresses.
  5. At the bottom of the page, click Save.

    • Note: It can take up to 24 hours for your changes to take effect.  

Additional resources: 

Microsoft 365

To add IP addresses to Allowlist:

  1. In the Microsoft 365 Defender portal, go to Email & Collaboration > Policies & Rules > Threat policies page > Policies section > Anti-spam.

  2. On the Anti-spam policies page, select Connection filter policy (Default) from the list by clicking on the name of the policy.

  3. In the policy details flyout that appears, configure any of the following settings:
    • Always allow messages from the following IP addresses or address range: This is the IP Allowlist. Click in the box, enter a value, and then press Enter or select the complete value that's displayed below the box.
    • To add the Remind IP addresses, type in the box and click Add. To remove an entry, select the entry in Allowed IP Address and then click Remove. When you're finished, click Save.
  4. Always block messages from the following IP addresses or address range: This is the IP Block List. Enter a single IP, IP range, or CIDR IP in the box as previously described in the Always allow messages from the following IP addresses or address range setting.
  5. Turn on safe list: Enable or disable the use of the safe list to identify known, good senders that will skip spam filtering. To use the safe list, select the check box.
  6. When you're finished, click Save

Additional resources: 


To add IP addresses to Allowlist:

  1. Navigate to Security Settings > Email > Sender Lists.
  2. Under the Safe Sender list, enter our IP addresses
  3. Click Save.

Additional resources: 


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