US Patent 11558332 Automated electronic package transmission method selection

A first email message is received. The first email message has a first recipient email address and a first payload. The first recipient email address has a first username portion and a first domain name portion. If a user account is associated with the first username portion, then the first payload is transmitted to an email address associated with that user account. Otherwise, the first payload is transmitted, via a fax transmission method, to a first destination specified by a first destination identifier based on the first username portion of the first recipient email address.