How to set up DMARC for Maropost in Valimail

Updated over a week ago

This article covers the SPF and DKIM authentication processes for Maropost and how they are managed in Valimail. While only one of the two authentication methods is required for an email to pass DMARC, our recommendation is to configure both whenever possible.

Configuring DKIM authentication for your Maropost emails

Managing Sending Domains

The Sending Domains index page is where you can add and verify the domains for sending the emails. The index page lists all the domains you have added as Sending domains. Here, you can also manage the previously added domains using the available Actions.

  1. Click your username on the top-right corner of the application

  2. From the drop-down menu select Settings

  3. In the DNS Setup section, click Sending Domains

For each added domain, the following actions are available:

  • Verify Domain – Once you have added a domain, you can always go back to the verification process using this action menu.

  • Set as Default – Select the domain as the default domain.
    Note: You must select a default domain to be able to send non-branded campaigns.

  • Delete Domain – Use this option to remove the sending domain from your account.

Setting Up Sending Domains

The complete setup process for adding a Sending Domain in your account includes:

  1. Adding a domain

  2. Verifying the domain

Adding a Domain

Follow the steps below to add a domain as Sending domain:

  1. Click your username on the top-right corner of the application, and from the drop-down menu, select Settings.

  2. On the Settings page, in the DNS Setup section, click Sending Domains.

  3. On the Sending Domains index page, click New Domain.

  4. Enter the domain name and DKIM Selector for the domain that you want to use as Sending domain.

    Here's what you need to know about a DKIM Selector:

    • It is typically an alphanumeric string. For example, mta123.

    • It is used by the mailbox providers to uniquely identify your public key used for public key/private key signature validation.

    • It can be reused across domains but a specific domain can only have one public key for a specific selector.

  5. Click Next to go to the verification page.

  6. You can initiate the verification process now or click Done and do the verification process later.

Verifying the Domain

You must verify the Sending Domain before you can use them for sending emails. The following verifications are required: DKIM, SPF, Yahoo, DMARC, Google Postmaster Tools, and Custom Return Path.



DKIM (DomainKeys Identified Mail) helps the email receiver to check if the email was sent from the authorized domain.


  1. Go to your domain's DNS Setting and create a record as TXT type.

  2. Copy the DKIM hostname and value from the Domain Verification page of the Maropost application.

  3. Paste the copied information in the TXT record of the DNS setting. Email servers can use this information to verify your email's DKIM signatures.

  4. Go back to the Domain Verification page, and then click Verify TXT for the DKIM verification.

You can also find the instructions on how to set up DKIM and SPF for Maropost, here.

Add a Maropost DKIM key in Valimail

You can find more detailed information on how to add a DKIM key in Valimail, here:

Configuring SPF authentication for your Maropost emails

Once you establish that Maropost is an authorized sender for your domain, you will need to add the service in your Enabled Senders.

You will find more detailed information on how to add a service for your domain in Valimail, here:

Note: We encourage you to use the comment section for any useful information about your sending service, such as the name of the service owner, change request ticket numbers, etc.

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