Ah, I just checked my records. I contacted them in 2021-02. Their response was: > We prefer customers to attach email addresses from widely recognized provider

Ah, I just checked my records. I contacted them in 2021-02. Their response was: > We prefer customers to attach email addresses from widely recognized providers for security purposes. Additionally, our servers have a hard time communicating with private email servers. > You may create a new email address to handle your tax returns through FreeTaxUSA with a major provider.