Note: In order to send faxes by email, you must have SPF records enabled (Sender Policy Framework). This helps reduce phishing attacks, email spam, and connection failures. Make sure the email addresses that you use to fax by email have SPF enabled and the mail source is included in the SPF record, or any fax you send by email will fail (Gmail, Yahoo, and other consumer email services are typically SPF compliant). If still unsure, please contact your email provider or administrator. In the meantime, you can send faxes online by using our website and apps.