In order to set Email Security to work with Google Workspace, you need to make sure the HEIMDAL Email Security IP addresses are added to the allowlist in Gmail. This helps prevent emails from certain IP addresses from being marked as spam by adding them to an email allowlist. Emails from these addresses won't be marked as spam by Gmail. Email allowlists are always applied to your entire domain. You can’t create email allowlists that apply to specific organizational units only.
Add HEIMDAL's Email Security IP addresses to your allowlist
1. Sign in to your Google Admin console.
2. In the Admin console, go to Menu and then Apps and then Google Workspace and then Gmail and then Spam, Phishing and Malware.
3. On the left, select the top-level organization. This is usually your domain.
4. On the Spam, phishing, and malware tab, scroll to the Email allowlist setting. Or, in the search field, enter the email allowlist.
5. Enter the IP Address of the sending mail servers (see them below) you want to add 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.
6. At the bottom of the page, click Save.
Add HEIMDAL's Email Security IP addresses to the Inbound Gateway
1. Enable Inbound Gateway.
2. Add the Email Security IP Addresses.
3. Leave the Automatically detected external IP (recommended) option enabled.
4. Press the Save button.
Changes can take up to 24 hours but typically happen more quickly. You can track changes in the Admin audit log.
Email Security IP Addresses
- 20.50.183.144 (eu-esec-01.heimdalsecurity.com)
- 20.50.183.146 (eu-esec-01.heimdalsecurity.com)
- 20.50.183.145 (eu-esec-02.heimdalsecurity.com)
- 20.50.183.147 (eu-esec-02.heimdalsecurity.com)
- 20.50.183.148 (eu-esec-outbound.heimdalsecurity.com)
- 20.50.183.149 (eu-esec-outbound.heimdalsecurity.com)
- 20.50.183.150 (eu-esec-backup.heimdalsecurity.com)
- 20.50.183.151 (eu-esec-backup.heimdalsecurity.com)
- 20.88.177.217 (us-esec-01.heimdalsecurity.com / us-esec-02.heimdalsecurity.com)
- 20.88.177.218 (us-esec-01.heimdalsecurity.com / us-esec-02.heimdalsecurity.com)
- 20.88.177.208 (us-esec-outbound.heimdalsecurity.com)
- 20.88.177.209 (us-esec-outbound.heimdalsecurity.com)
- 172.166.114.48 (uk-esec-01.heimdalsecurity.com / uk-esec-02.heimdalsecurity.com)
- 172.166.114.49 (uk-esec-01.heimdalsecurity.com / uk-esec-02.heimdalsecurity.com)
- 172.166.114.50 (uk-esec-outbound.heimdalsecurity.com)
- 172.166.114.51 (uk-esec-outbound.heimdalsecurity.com)