When setting up email systems, properly configuring DNS SPF (Sender Policy Framework) records is crucial for ensuring email deliverability and protecting your domain from spoofing. SPF records help identify which mail servers are authorized to send emails on behalf of your domain, reducing the likelihood of your messages being marked as spam or rejected by recipient servers. In this article, we’ll walk you through the steps to configure your email settings with DNS SPF records, ensuring your emails sent through RedTeam Flex are authenticated and sent securely. Follow the steps below to safeguard your domain and improve email performance.

Please ask your IT Department to add RedTeam Software to the allow/whitelist on your mail server and/or DNS SPF records.

1. Log in to the administrative console for your domain.

2. Locate the page where you can update the DNS records.

3. Create a TXT record containing this text:

include:spf.protection.outlook.com include:sendgrid.net ~all"

To authorize an additional mail server, add the server's IP address before just before the ~all argument using the formatip4:address or ip6:address.

See Sender Policy Framework for more details on the SPF format

4. Save your changes.

Your new SPF record can take up to 48 hours to go into effect, but this usually happens more quickly.

Adding more than one SPF record for a domain can cause problems with mail delivery and

spam classification. Instead, we recommend using only one SPF record. For details, see

Multiple SPF records.

For help creating an SPF record, contact your domain or Email Service provider.