Retarus Fax vs OpenText Fax (RightFax) (2026): which should you pick?
As of Nov 13, 2026, Retarus Fax and OpenText Fax (RightFax) share a 1.8 GPA, neither has a free plan and their prices can't be set side by side, so the choice depends on whether you care more about ease of use, where Retarus Fax grades higher, or features, where OpenText Fax (RightFax) does.
Checked Nov 12, 2026 and Nov 13, 2026 · graded Nov 12, 2026 and Nov 13, 2026 by ToolGPA
They get the same grade on value for money, the free plan and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
Retarus Fax
Enterprise cloud fax with Outlook, API and printer connections
Paid
OpenText Fax (RightFax)
Enterprise fax server software that connects to EHR and ERP systems
Paid
Which one is for you
Pick Retarus Fax if
- Fits if you are a mid-size or large company moving fax into Outlook
- Works for teams that need fax tied to SAP or Epic
Look elsewhere if
- Skip it if you are an individual or small office, as it is aimed at larger companies
- Skip it if you want a price on the page, since none is published
- Not for you if you want a free trial, as none is listed
- Watch out: the starting page covers only the Microsoft 365 and Outlook option of a wider product line
Pick OpenText Fax (RightFax) if
- Fits if you run a hospital or large company replacing an old fax server
- Works for IT teams that need fax kept on-premises or in a private cloud
Look elsewhere if
- Not for you if you're one person or a small office, as it's sold to organisations
- Skip it if you want a price up front, because none is published
- Watch out: cloud faxing is a separate OpenText offering, Fax Cloud Connect or Fax Private Cloud
- Watch out: the old rightfax address on opentext.com now returns an error
How we grade them
| 1.8GPARetarus FaxWeak | 1.8GPAOpenText Fax (RightFax)Weak | |
|---|---|---|
| Value for money | CNo prices are published; the site is built around scoping with a project team. | CNo price is published. The page directs buyers to OpenText sales or a demo, so there is nothing to set against the category's $6.99 to $12.49 a month. |
| Free plan and trial | FNo free plan or trial is listed, so nothing can be tried without paying. | FNo free plan and no trial are on record. |
| Features | COutlook and Microsoft 365, several ways in, APIs and connectors, a web portal with tracking, global infrastructure and migration help. | BOn-premises, hybrid and private-cloud options, Epic and Veradigm connectors, print-to-fax, MFP printer links, an AI assistant and usage dashboards. The listing shows no gap in the fax job. |
| Ease of use | CNo rating on record. A project team scopes it and you connect Outlook or an API. | DNo store rating on record. This is server software that IT teams install and connect to EHR and back-office systems. |
| Platforms and integrations | BWeb and Windows with Microsoft 365, Outlook, Epic, SAP and Active Directory. | BDesktop print-to-fax, email and printer faxing, plus connectors for Epic, Meditech, SAP, Salesforce and NetSuite. No phone apps are listed. |
| Best for | enterprise cloud fax with Outlook | large organisations' own fax servers |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Retarus Fax and OpenText Fax (RightFax). How we grade
Where they differ
- OpenText Fax (RightFax) also covers workflow automation.
In commonWebReportsOnline fax
At a glance
| Retarus Fax | OpenText Fax (RightFax) | |
|---|---|---|
| Pricing | Paid | Paid |
| Starts at | Not published | Not published |
| Free plan | None | None |
| Free trial | None listed | None listed |
| Web | ||
| Windows | ||
| Made by | Retarus | Open Text Corporation |
| Price read from | Not confirmed | Not confirmed |
| Checked | Nov 13, 2026 | Nov 12, 2026 |
Worth knowing
Retarus Fax
- No prices are published; the site is built around scoping with a project team.
- Positioned for mid-size to large enterprises, not individuals or small offices.
- The page used as the starting URL describes the Microsoft 365 and Outlook option of a wider product line.
OpenText Fax (RightFax)
- No prices are published: the page directs buyers to contact OpenText sales or request a demo.
- The old rightfax URL on opentext.com now returns an error; the product page is titled OpenText Fax (RightFax).
- This is fax server software for organizations, not a self-serve signup for individuals.
- Cloud faxing is offered through Fax Cloud Connect and Fax Private Cloud, which are separate OpenText offerings.
Key features
Retarus Fax
- Outlook and Microsoft 365
- An Outlook add-in and Active Directory synchronization let Microsoft 365 users send and receive fax and SMS without in-house infrastructure.
- Several ways in
- Fax can be used through a web browser, Outlook, multifunction printers or a Windows application.
- APIs and connectors
- REST and SMTP interfaces are offered, plus pre-built connectors for applications such as Epic and SAP.
- Web portal and tracking
- IT teams configure services in a web portal, with real-time reporting on the status of individual faxes.
- Global infrastructure
- The page cites six data centers worldwide, multiple carriers and certifications including SOC 1, SOC 2, ISO 27001 and HITRUST.
- Migration help
- A named project team handles scoping, migration from fax servers, and custom integrations.
OpenText Fax (RightFax)
- Flexible deployment
- The page lists on-premises, hybrid cloud, private cloud and managed service options, with a cloud fax transmission service built for the product.
- EHR and back-office integrations
- Certified integrations are listed for Epic and Veradigm, with connectors for Meditech, Oracle Health, SAP, Salesforce, NetSuite and SharePoint.
- Desktop, email and MFP faxing
- Users send from desktop apps with print-to-fax or from email clients, and multifunction printers connect through pre-built connectors.
- Fax Aviator AI
- The embedded AI answers questions, routes faxes, summarizes them and extracts structured data for downstream applications.
- Analytics and monitoring
- Centralized dashboards show fax performance, usage and delivery success.
Plans
Retarus Fax
Pricing could not be confirmed. See retarus.com.
OpenText Fax (RightFax)
Pricing could not be confirmed. See opentext.com.
Common questions
Which is cheaper, Retarus Fax or OpenText Fax (RightFax)?
As of Nov 13, 2026, Retarus Fax has no price we could confirm, and OpenText Fax (RightFax) has no price we could confirm.
Which has a free plan, Retarus Fax or OpenText Fax (RightFax)?
As of Nov 13, 2026, neither Retarus Fax nor OpenText Fax (RightFax) has a free plan.
Which platforms do Retarus Fax and OpenText Fax (RightFax) run on?
As of Nov 13, 2026, only Retarus Fax lists a Windows app. Both list a web app. A platform missing from a listing is one its maker's pages did not mention.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.