Does GoFax include its branding in faxes sent, fax header lines or the sender ID?

No. GoFax does not include any branding or reference to GoFax in fax headers/header lines, faxed documents or a fax's metadata (e.g. caller ID).

Your fax recipient will only receive your fax content (files sent), see a 'From' fax number, and any 'Fax Sender ID ' or 'Fax Header Line' you configure.  

Explore how to configure GoFax customised settings for a fax header line.