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In order to ensure top-notch deliverability, we automatically sign all outbound mail with a shared Marketo DKIM signature.

Note

You may need the help of your IT team to complete some of the steps in this article.

You can personalize the DKIM signature to reflect the domain(s) of your choice. Here's how.

1. Go to the Admin section.

Note

If you set up a custom DKIM signature the old-fashioned way, it will continue to work and should show up here.

2. Click Email, then the DKIM tab, and finally Add Domain.

3. Enter the domain you will be using in Marketo emails as the From Address and click Add.


Tip

If you use a different domain in your From Address, we will use the Marketo shared DKIM signature.

4. Send the Host Record and TXT Value to your IT. Ask them to create the record for you and make sure it propagates to all nameservers associated with the from domain. Marketo's DKIM verification requires that the DKIM key is propagated to all nameservers associated with the domain being DKIM-signed.

5. Once they confirm they've created the record, come back to Marketo, select your domain, and click Check DNS.

Reminder

If the confirmation fails and your IT has created the record correctly, it may be a matter of DNS propagation. Try again later.



Caution

Modifying/removing the corresponding DNS record will result in harmed deliverability. Make sure to delete the entry in Marketo before making DNS changes.


This will absolutely help with your email deliverability. You should get validation that the record is there and correct.