Trend Micro Email Security SPF Setup 

SPF (Sender Policy Framework) is an email authentication protocol that prevents unauthorized senders from sending emails on behalf of your domain. By validating the sending servers, SPF helps protect against spoofing and phishing attempts.

This guide explains how to configure SPF for Trend Micro Email Security, a cloud-based solution that filters and secures your email traffic.

Trend Micro Email Security SPF Requirements

Note: If you’re already using Sendmarc for SPF management, simply copy ‘include:spf.hes.trendmicro.com‘ and follow the steps here.

To authorize Trend Micro Email Security to send emails on your domain’s behalf:

  1. Log in to your domain’s DNS dashboard.
  2. Go to the page where you can update the DNS settings on that domain.
  3. Check if a TXT record starting with v=spf1 already exists.
    • If it exists, modify the existing record to include Trend Micro Email Security (details in the table below).
    • If not, create a new TXT record.

Example of an updated SPF record:

HostTypeValue
@ or blankTXTv=spf1 include:another.net include:spf.hes.trendmicro.com ~all

Example of a new SPF record:

HostTypeValue
@ or blankTXTv=spf1 include:spf.hes.trendmicro.com ~all
  1. Save your changes in the DNS control panel.

Allow up to 48 hours for DNS propagation, depending on your DNS host.

How to update your SPF settings using Sendmarc

For detailed instructions on how to update your SPF record through Sendmarc, refer to the Sendmarc SPF Setup Documentation. 

Trend Micro Email Security‘s Documentation

Refer to Trend Micro Email Security‘s official documentation for SPF setup here.

Looking for DKIM Settings?

Find out how to configure your Trend Micro Email Security DKIM settings here.