Follow the below steps to create a TXT record for your domain name.
- Log into the Client Services Area

- Click on Services.

- Click on the Active button for your Email Only Hosting package.

- Click on DNS Management.

- Click on the DNS Records to the right of your domain name.

- Click on Create DNS Record.

- Set the Record Type to TXT.
- Enter the Record Name as @
- Enter the Record Data within the TXT Value field.
- Click on Create.

Note: DNS changes may take between 1 and 24 hours to propagate. If Google does not find the record immediately they will check periodically for it.