Click on the MY DOMAINS link, located on the top right of the navigation.
Click on the domain name you wish to create a TXT record for.
Click Manage DNS Records.
Select Create Record.
Here you will add the TXT record:
DNS Templates: Select 'TXT'
Host: _dmarc
Answer: v=DMARC1; p=none; rua=mailto:rua-import-xxxx@sendforensics.com [Notes: replace rua-import-xxxx@sendforensics.com with your own unique SendForensics RUA processing address which can be found in Domain Settings for your domain.]
TTL: 60 (so that you do not need to wait too long before verifying)
Select ADD RECORD to save your new TXT record.
Wait for at least 60 seconds, then you can verify that you have the correct record entered in Domain Settings for your domain.