Healthcare cybersecurity · HIPAA email encryption
Paubox
Paubox provides HIPAA-compliant email encryption and related security so healthcare organizations can send PHI that recipients read in ordinary inboxes. It is not an IoMT device security platform.
Strong fit
- Clinics, health plans, and digital health vendors that need HIPAA-compliant email without forcing recipients through a portal
- Teams sending PHI from Google Workspace or Microsoft 365 who want encryption that stays inside ordinary inboxes
- Buyers comparing mid-market healthcare email security rather than a full hospital SOC platform
Weak fit
- Health systems shopping IoMT device security or third-party risk assessment suites
- Buyers that only need patient SMS or EHR inbox messaging with no email encryption requirement
- Organizations that refuse SaaS email controls and insist on on-prem gateways alone
Bottom line
Paubox earns a Recommend at the top of our HIPAA email security board. The product encrypts outbound healthcare email so recipients read messages in ordinary inboxes instead of a separate portal, which is the main reason mid-market clinics and digital health teams adopt it. G2 rankings and Inc. 5000 recognition support product depth; implementation is usually a mail-flow change rather than a multi-month EHR project. Pricing is subscription-based and clearer than many security suites, though enterprise add-ons still need a quote. Third-party revenue signals cluster near $10-21M with roughly 30-50 employees, inside the prefer band. Score sits above LuxSci on this email-security board and below broad RiskOps leaders such as Clearwater when the buy is enterprise risk programs rather than email.
Score breakdown
Weights: Outcomes 35% · Product 30% · Implementation 20% · Pricing clarity 15%.
Paubox is a San Francisco HIPAA email security company founded in 2015 by CEO Hoala Greevy. The core product encrypts healthcare email so PHI can be read in ordinary Gmail or Outlook inboxes instead of a patient portal.
It is email security for healthcare, not an IoMT device platform or a HITRUST assessor suite. Compare LuxSci when high-volume marketing email and API personalization are the buy, and compare Clearwater or Censinet when the project is enterprise risk assessment rather than mail encryption.
Score reflects strong portal-free delivery outcomes and product focus, with softer marks only versus full RiskOps platforms that solve a different buyer problem.
Competitor landscape
| Vendor | Overall | Ease of implementation |
|---|---|---|
| Paubox | 7.5 | 7.3 |
| LuxSci | 6.8 | 6.6 |
Pricing
| Item | Detail |
|---|---|
| Model | SaaS subscription for HIPAA email encryption, inbound security, archiving, and related modules; public starter pricing appears on marketing pages with volume tiers. |
| What usually drives cost | Mailbox or send volume, modules (encryption, inbound AI, archive, API, marketing), and support tier. |
| What to ask in diligence | All-in annual cost at your mailbox count, including inbound filtering and any API or marketing add-ons. |
| Published pricing | Public list price: starter plans listed on paubox.com; enterprise modules are quote-based. |
Prerequisites for purchase
| Need | Why it matters |
|---|---|
| What you need to get Paubox to function | |
| Named IT/security owner for mail-flow cutover | Encryption without an owner stalls in ticket queues. |
| Inventory of systems that send PHI by email today | Shadow senders recreate plaintext risk. |
| Baseline of encrypted vs plaintext PHI sends | You cannot prove improvement without a before count. |
| Acceptable recipient experience defined (inbox vs portal) | Surprise portals drive workarounds. |
| Legal/compliance sign-off on BAAs and retention | Security tools fail audits without paperwork. |
| What will maximize your value | |
| Route all PHI mail classes through the platform in 30 days | Partial coverage leaves the risk. |
| Retire competing encryption portals after parallel week | Dual tools confuse staff. |
| Monitor bounce and help-desk tickets weekly | Silent delivery failure looks like success. |
| Train high-volume senders first | Marketing and RCM create most volume. |
| Publish a monthly compliance digest to security and ops | Hidden exceptions accumulate. |
| Deal-breakers | |
| Nobody will own DNS, mail-flow, or BAA paperwork. | |
| You require on-prem only and refuse SaaS email controls. | |
| Legal blocks encryption changes for the mail domains in scope. | |
| You expect IoMT device security from an email product. | |
| Staff will keep using personal email for PHI. | |
Value creation time frame
| # | Stage | Typical range |
|---|---|---|
| 1 | Scope & baseline | 1-2 weeks - Domains, senders, BAA, success metrics. |
| 2 | Configure | 1-3 weeks - Mail-flow, encryption policies, SSO. |
| 3 | Pilot | 1-2 weeks - One department or brand; ticket watch. |
| 4 | Scale | 2-6 weeks - Remaining mailboxes; retire old portals. |
Methodology
| Weight | Factor | What it measures |
|---|---|---|
| 35% | Customer outcomes | Whether buyers get measurable operational or clinical-workflow results after go-live |
| 30% | Product | Capability depth, reliability, and fit for the job the category actually buys |
| 20% | Implementation | How hard it is to stand up, integrate, train, and stabilize |
| 15% | Pricing clarity | Whether a buyer can model total cost without a mystery quote |
| Label | Meaning |
|---|---|
| Highly recommend | Strong outcomes and product with manageable caveats |
| Recommend | Solid fit for the right buyer; know the tradeoffs |
| Conditional | Only with a specific use case or heavy caveats |
| Not recommended | Avoid for most buyers in this category |
Read our full methodology for how we weight scores and assign recommend labels.