Trustwave MailMarshal SPF Setup

SPF (Sender Policy Framework) is an email authentication protocol that helps prevent unauthorized servers from sending emails using your domain. By specifying which servers are allowed to send on your behalf, SPF reduces the risk of spoofing and phishing.

This guide walks you through configuring an SPF record for Trustwave MailMarshal, a secure email gateway solution designed to manage and protect your organization’s outbound email traffic.

Trustwave MailMarshal SPF Requirements

Note: If you’re already using Sendmarc for SPF management, copy the record that matches your region and follow the steps here.

Region	SPF Record
United States	v=spf1 include:spf.us.mailmarshal.cloud ~all
Europe	v=spf1 include:spf.eu.mailmarshal.cloud ~all
Australia	v=spf1 include:spf.au.mailmarshal.cloud ~all

In this example, we will use USA’s SPF record as an example. To authorize Trustwave MailMarshal to send emails on your domain’s behalf:

Log in to your domain’s DNS dashboard.
Go to the page where you can update the DNS settings on that domain.
Check if a TXT record starting with v=spf1 already exists.

- If it exists, modify the record to include Trustwave MailMarshal (details in the table below).
- If not, create a new TXT record.

Example of an updated SPF record:

Host	Type	Value
@ or blank	TXT	v=spf1 include:another.net `include:spf.us.mailmarshal.cloud ~all`

Example of a new SPF record:

Host	Type	Value
@ or blank	TXT	`v=spf1 include:spf.us.mailmarshal.cloud ~all`

Save your changes in the DNS control panel.

Depending on your DNS host, allow up to 48 hours for DNS propagation.

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.

Trustwave MailMarshal’s Documentation

Refer to Trustwave MailMarshal’s official documentation for SPF setup here.

Looking for DKIM Settings?

Find out how to configure your Trustwave MailMarshal DKIM settings here.