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Cybersecurity · head to head

Proofpoint vs Proton Mail

Proofpoint logo

Proofpoint

Cybersecurity

Email security and data protection suite from a private company owned by Thoma Bravo, licensed per user with modules sold separately.

From
$6/month
Rated
-
Full reviewWebsite
Proton Mail logo

Proton Mail

Cybersecurity

Secure email that protects your privacy

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Proton Mail has a free tier, so it costs nothing to try first.
  • Each has a real cost: Proofpoint licensing is per user per year with each capability as a separate stock item, so the platform shown in a proof of concept is normally several products, and adding awareness training, data loss prevention or insider threat monitoring later is a fresh negotiation rather than enabling a feature.; Proton Mail paid plan pricing not displayed on vendor site
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Proofpoint and Proton Mail actually diverge.

Attributes where Proofpoint and Proton Mail differ
AttributeProofpointProton Mail
Starting price$6/monthFree
Pricing modelsubscriptionfreemium
Free tierNoYes
PlatformsEmail, Cloud, WebWeb
Founded2002Unknown

Identical on both: user rating (Not yet rated), category (Cybersecurity).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Proofpoint

  • Inline secure email gateway
  • Attachment sandboxing
  • URL rewriting and click-time analysis
  • Threat Response Auto-Pull
  • Email Fraud Defense
  • Security awareness training
  • Insider Threat Management
  • Enterprise DLP

Only in Proton Mail

Nothing recorded that Proofpoint does not also cover.

What people use each for

The jobs each tool is most often brought in to do.

Proofpoint

  • A regulated organisation that needs a filtering layer, DMARC enforcement and archiving with an auditable trail across all threenot Proton Mail
  • An organisation that suffered a business email compromise and must show its board a control that stops delivery rather than remediating afterwardsnot Proton Mail
  • Concentrating stronger controls and training on the specific individuals who actually receive targeted attacks rather than applying uniform policynot Proton Mail
  • Retracting a phishing message from thousands of mailboxes after the verdict changes, including copies that were forwarded internallynot Proton Mail

Proton Mail

  • Encrypted email communicationnot Proofpoint
  • Privacy-focused email servicenot Proofpoint
  • Family email protectionnot Proofpoint

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Proofpoint

  • Licensing is per user per year with each capability as a separate stock item, so the platform shown in a proof of concept is normally several products, and adding awareness training, data loss prevention or insider threat monitoring later is a fresh negotiation rather than enabling a feature.
  • It sits inline with MX records pointed at it, so any service degradation is a mail outage for the entire organisation, and both migrating on and migrating off are cutovers with queueing, rollback planning and a real risk of message loss.
  • Most customers on Microsoft 365 E5 or Google Workspace Enterprise are already paying for native filtering, so Proofpoint is a second licence layered over a capability the organisation owns, and that comparison is raised by finance at every single renewal.
  • The administration console carries a decade of acquisitions: the classic gateway policy routes and filters do not share a model with the newer module interfaces, rule evaluation is order-sensitive in ways that surprise untrained administrators, and mistakes there silently change what is delivered.
  • Quarantine management is a standing helpdesk workload because legitimate bulk mail, invoices and supplier notifications are held, and unless end-user digests are configured and users are taught to use them, the security team becomes the mail release desk.

Proton Mail

  • Paid plan pricing not displayed on vendor site
  • Free tier limited to 1 GB storage
  • Free tier limited to single email address

Pricing, plan by plan

Proofpoint

$6/month
  • Email Protection$6/month
    • Per user
    • Advanced threat detection
    • Data loss prevention
  • Compliance$8/month
    • All Email Protection
    • Archive & search
    • eDiscovery
  • Advanced Threat$10/month
    • All Compliance features
    • Targeted attack detection
    • Behavior analytics

Proton Mail

Free

No published plan breakdown. See the Proton Mail review.

Which should you pick?

Choose Proofpoint if

  • You need inline secure email gateway.
  • You work on Email, Cloud, Web.
  • You also want attachment sandboxing.
Proofpoint review

Choose Proton Mail if

  • You want to start without paying.
Proton Mail review

Questions people ask

Is Proofpoint or Proton Mail better?
Neither clearly leads. Proofpoint starts at $6/month and Proton Mail at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Proofpoint or Proton Mail?
Proton Mail has a free tier; the other does not. Paid plans start at $6/month for Proofpoint and Free for Proton Mail.
Does Proofpoint or Proton Mail run on more platforms?
Proofpoint runs on Email, Cloud, Web. Proton Mail runs on Web.
Can I use Proton Mail for free?
Yes. Proton Mail has a free tier, so you can try it without paying. Proofpoint starts at $6/month.
What is Proofpoint best used for?
Proofpoint is most often used for a regulated organisation that needs a filtering layer, dmarc enforcement and archiving with an auditable trail across all three, an organisation that suffered a business email compromise and must show its board a control that stops delivery rather than remediating afterwards, concentrating stronger controls and training on the specific individuals who actually receive targeted attacks rather than applying uniform policy, retracting a phishing message from thousands of mailboxes after the verdict changes, including copies that were forwarded internally. Of those, a regulated organisation that needs a filtering layer, dmarc enforcement and archiving with an auditable trail across all three and an organisation that suffered a business email compromise and must show its board a control that stops delivery rather than remediating afterwards are not what Proton Mail is typically brought in for.
What can Proofpoint do that Proton Mail cannot?
Proofpoint covers Inline secure email gateway, Attachment sandboxing, URL rewriting and click-time analysis, Threat Response Auto-Pull.

Answered from the vendors’ own pages

Proofpoint: Does it replace Microsoft Defender for Office 365?

Functionally it overlaps heavily, and running both means paying twice for filtering. Most Proofpoint customers on Microsoft 365 keep Defender licensed because it is bundled in E5 and use Proofpoint as the inline gateway. Expect to justify that duplication annually.

Proton Mail: Is there a free version of Proton Mail?

Yes, Proton Mail offers a free plan with 1 GB storage, 1 encrypted email address, and basic features like folders, labels, and filters.

Source
Proofpoint: Who owns Proofpoint?

Thoma Bravo, a private equity firm, which took the company private in 2021. It has continued to acquire since, including Tessian, Normalyze and Hornetsecurity, which is why the portfolio spans so many adjacent categories.

Proton Mail: What does the Mail Plus plan include?

Mail Plus includes 15 GB storage, 10 encrypted email addresses, support for 1 custom domain, 10 hide-my-email aliases, priority support, and access to Proton Calendar.

Source
Proofpoint: Do I have to change my MX records?

For the gateway, yes. That is what makes it inline and able to block before delivery. Some newer capabilities integrate through the mailbox API instead, but the core protection model is MX-level.

Proton Mail: What is included in Proton Unlimited?

Proton Unlimited provides 500 GB storage, 15 email addresses, 3 custom domains, unlimited hide-my-email aliases, access to Mail, Calendar, VPN, Drive, and Pass, plus dedicated support.

Source
Proofpoint: Is security awareness training included?

No, it is a separate subscription. It integrates well with the threat data, so training can target the users actually being attacked, but it is a distinct line item on the quote.

Proton Mail: Does Proton Mail offer a money-back guarantee?

Yes, Proton Mail provides a 30-day money-back guarantee for paid plans.

Source
Proofpoint: What does Threat Response Auto-Pull actually do?

It removes messages from mailboxes after delivery when the verdict changes, including copies that users forwarded internally. It is the answer to the case where a link was clean at delivery and weaponised an hour later.

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