Setting up a custom sending domain

Setting up a custom domain

By setting up a custom sending domain for your emails you will achieve higher deliverability of your emails. This is possible when you have configured your sending provider to be Goodbits from the email setup of your newsletter.

Instead of sending emails with a reply-to address we support the ability for you to use a custom sending domain. In this example we will further explain setting up "".

As an overview, we need to change the email setup in Goodbits to use, you will need to verify the domain and then add certain DNS records on the service you used to register your domain.

All of these steps ensure we can deliver the emails with the best validation possible, reducing the changes of your email being placed in spam.

1. Enter your custom domain

Under "Email setup" in your account settings, switch the toggle under "Use Custom Sending Domain" to on. Enter the full email address you would like to send from, for us it would be "", then save the settings page.

We will send an email to that address as the first step to verify your domain, please follow that link. If you don't receive it please make sure your domain is setup to receive email, if it wasn't and you try again, please let us know as we might've blocked sending emails to that address.


Now we need to verify the domain with our email sending provider and allow our sending provider to sign the emails on your behalf. To do this you need to enter the DKIM entry displayed when you open the modal "View DKIM Instructions"

Add this TXT record for your domain (remember to change being changed):

Name (Some services don't require you to enter your domain, so just enter goodbits._domainkey)
(This will be displayed in your modal, here is one as an example, each domain has their own key)
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrLHiExVd55zd/IQ/J/mRwSRMAocV/hMB3jXwaHH36d9NaVynQFYV8NaWi69c1veUtRzGt7yAioXqLj7Z4TeEUoOLgrKsn8YnckGs9i3B3tVFB+Ch/4mPhXWiNfNdynHWBcPcbJ8kjEQ2U8y78dHZj1YeRXXVvWob2OaKynO8/lQIDAQAB;

3. Verify Validity

Back in Goodbits, click on the "Verify Record" from the "View DKIM instructions" modal. That will trigger a check of your domain to ensure the records have been setup properly. Remember that some DNS providers take a couple of hours before the settings are updated on the internet.

Still Stuck?

Not working as you expected? Too technical? Contact us at

Using MailChimp?

When a campaign is created in MailChimp, we enable their 'Authenticate Campaign' which ensures that MailChimp looks up any SPF and DKIM. For more information read the  MailChimp Authentication guide. So just make sure your from details on the list you are using is configured to use the domain you have authenticated with them.

If you have any concerns, please ask us. We'd be happy to chat about this!

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