Notarize to Proof: What's Changing?

Notarize will undergo a number of critical changes as it rebrands to its new company: Proof. Here is what active Notarize customers, partners, and users need to know about upcoming technical changes to prepare for this transition.

  • Notarize’s web applications will move to We will use URL redirects to keep existing bookmarks and login credentials working.
  • We will maintain the existing API endpoint ( indefinitely. We will introduce a new endpoint ( and recommend it for future integrations.
  • Our email “From” and “Reply-to” addresses will come from
    Notarize’s Single Sign On (SSO) configurations will not have to change. New metadata is available in here: Single Sign-On (SSO).
  • We will run and side-by-side for a sufficient grace period to help with the transition.

Web Application Changes

  • Starting September 14, all Notarize web applications at will redirect to Users will be able to continue using their current login credentials, and we will stand up redirects to connect Notarize URLs to their new home on Proof.

Production Redirects → → → → → → →

Fairfax Redirects

Fairfax is a standalone, production mirror environment, used by Notarize customers and partners for User Acceptance Testing (UAT) and integration testing. → → → → → → →

Side-by-Side Configuration

Starting September 14, Notarize will run new web applications side-by-side with its current portals – both in our live production environment and Fairfax test environment – before implementing URL redirects.

API Changes

Notarize will maintain its existing endpoint indefinitely to support existing integrations. A new endpoint will be introduced at and will be recommended for new integrations.

Both endpoints will allow use of the same API keys.

Email Changes

Emails sent by Notarize will update to reflect the Proof rebranding. Additionally, “From” and “Reply-to” will come from For example: [email protected] and [email protected].

Notarize uses dedicated IP addresses with its email providers to ensure high rates of email delivery. Notarize will introduce three new dedicated IP addresses for Proof email delivery.

The full list of email sending IP’s is available here: Security. Additionally, Notarize will be enforcing DMARC on its based emails.