Connecting Your Domain with Mailjet

We will show you how to set up your IONOS domain as a sender domain for the Mailjet email marketing platform.

Your advantages:

All email addresses associated with this domain are automatically validated for sending emails;
The use of SPF and DKIM email security protocols improves your sender reputation and deliverability of your emails.

Adding a Sender Domain

To set up your IONOS domain as the sender domain, follow the steps below:

Log in to your Mailjet account and open Account Settings.
In the Senders & Domains section, click Add a sender domain or address.

The Sender Domains & Addresses page appears.
In the Domains section, click Add a domain.
In the Domain field, type the domain you want.
In the Label field, type the name of the website.
Click Add.

Your domain is now listed with a status of "Pending".
Click the gear icon next to your domain and select Validate.
Click Configure Automatically.

The IONOS Login page opens in a new window.
Log in to your IONOS account.
Click Connect.

Your domain is now automatically connected .
Click Close to return to Mailjet.

Setting Up SPF/DKIM Authentication

To improve sender reputation and deliverability, it is necessary to set up SPF and DKIM. To set up SPF and DKIM in your Mailjet account:

Open your Mailjet account settings.
In the Senders & Domains section, click Setup SPF/DKIM Authentication.
Next to your domain, click the gear icon and select Setup SPF/DKIM Authentication.
Click Configure Automatically.

The IONOS Login page opens in a new window.
Log in to your IONOS account.
Click Connect.

The DNS records required by Mailjet for SPF and DKIM are automatically created in your IONOS account.
Click Close.

Initiating a New Status Check

If validation of your domain or SPF/DKIM authentication setup is not completed within an hour despite automatic configuration, initiate a revalidation in your Mailjet account.

Domain Validation

Open your account settings.
In the Senders & Domains section, click Add a sender domain or address.
Next to your domain, click the gear icon and select Validate.
Under Manual Authentication, in the Option 2: Create a DNS record section, click Check now.

The domain validation is confirmed.

SPF/DKIM Authentication

Open your account settings.
In the Senders & Domains section, click Setup SPF/DKIM Authentication.
Click the gear icon next to your domain and select Setup SPF/DKIM Authentication.
In the Manual Authentication section, click Refresh.

The SPF and DKIM records you set up are verified and confirmed.

Please Note

If you have problems connecting Mailjet to your IONOS domain, please check the DNS settings of your IONOS domain. When doing so, ensure that a CNAME record is created with the hostname _domainconnect and the value _domainconnect.ionos.com. If your domain was registered before January 2022, it may still have the CNAME record _domainconnect.1and1.com. However, this does not affect the functionality of your domain, and both records work in the same way.