How to Edit Your Google Domains DNS Records

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If you have not yet first read about Setting up a Custom Domain, please read that first.

To send emails in Postaga from a custom domain, you will need to change the DNS records in your provider’s settings.

To do this, you will need to own a domain to send from (e.g. “”) and have access to the DNS settings in Google Domains.

This help doc specifically is meant to help you if your domain is registered with / hosted with Google Domains. Sometimes, you may have bought your domain through Google, but it is controlled in GoDaddy, so check to confirm.

If your DNS is not with Google, you can see here for more general help on editing DNS records.

To edit your DNS records, you will need to log into your Google Domains account.

google domains login

Next, you will need to find the appropriate DNS records listed in your Postaga account to add in Google Domains.

You can get these records by going to your account APIs page and clicking the checkbox under custom domains. Here is a screenshot of an example below:

Using Google Domains, you will need to:

  1. Click the domain you want to update.
  2. Open the menu Menu.
  3. Click the DNS icon .
  4. Scroll to the Custom resource records section.

On this next page, you will see a list of the DNS records for your domain. This page is where you edit them.

Then, you will add additional DNS records from the Postaga API page. These will include:

  1. Two CNAME records
  2. Two MX records
  3. Two TXT records (one is the SPF record, one is the DKIM / domain key record)

You should not need to modify or delete any existing DNS records that were already there.

A note for Google Domains users – you may need to make some modifications to the records to get everything working. In particular, the two TXT records: “DKIM” and “SPF”:

DKIM record for Google Domains

For the DKIM record (the one with the large amount of characters in the value field), you should set the hostname field to remove your domain name from the record.

For example – if Postaga says to add a hostname record as “” you should instead enter the hostname record in Google Domains as “k1_domainkey.m”

SPF record for Google Domains

For the SPF record (the record where the value field should be something like “v=spf1 ~all”), instead of creating a TXT record in Google Domains, you should create an SPF record. In the dropdown menu in Google Domains, choose the SPF record type. Then, you can enter the record as you normally would.

Once completed, save the records you added by clicking the blue Add Record button after entering each record.

Next, you can go to your Postaga API page and click “Recheck DNS” at the bottom of this page, and Postaga will verify the records.

Sometimes, it may take a few minutes for the records to update.

custom dns domain check postaga

Once you see the checkmarks next to the MX records, your custom domain is confirmed.

Now, any campaigns that you send out will send from your custom domain.

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