Best Email Encryption Software in 2026
Updated
In short: DataMotion Secure Email Exchange is ranked #1 of 28 as of 2 October 2026, ahead of MailHippo and Virtru Data Security Platform. The best-ranked option with a free plan is FlowCrypt. The lowest first paid tier on this page is Cryptshare.express at €0.42/mo.
Choosing email encryption involves more than message protection: delivery, recipient access and compatibility with your existing email service also matter. Compared on secure delivery, recipient verification, attachment limits and message expiry, the entries expose distinct factors to weigh. Check Gmail and Outlook integration, plus admin access controls, to assess service and administrative fit; free plans and paid-from pricing add cost context. The ranked order opens with DataMotion Secure Email Exchange, MailHippo and Virtru Data Security Platform, followed by FlowCrypt and c.Email. Match these capabilities to the kinds of messages you send and the access controls your team needs.
28 email encryption software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
| # | Platform | Score | Why | From | Free plan | Paid from | Secure delivery | |
|---|---|---|---|---|---|---|---|---|
| 1 | DataMotion Secure Email Exchange | 7.3 | RecognisedAPIDocumented | — | Yes | — | portal | View |
| 2 |  MailHippo | 6.8 | RecognisedAPIDocumented | $4.95/mo | No | 4.95 /user/mo | portal | View |
| 3 |  Virtru Data Security Platform | 6.7 | RecognisedAPIDocumented | $119/mo | No | — | — | View |
| 4 | FlowCrypt | 6.0 | RecognisedAPIDocumented | Free | Yes | — | link | View |
| 5 |  gpg4o | 6.0 | RecognisedAPIDocumented | €99.95/mo | Yes | — | attachment | View |
| 6 | Mailvelope | 6.0 | RecognisedAPIDocumented | €3/mo | Yes | — | attachment | View |
| 7 | c.Email | 5.9 | RecognisedAPIDocumented | Free | Yes | — | — | View |
| 8 |  Encryptomatic OpenPGP | 5.9 | RecognisedAPIDocumented | $2.50/mo | Yes | — | — | View |
| 9 |  Gpg4win | 5.9 | RecognisedAPIDocumented | — | Yes | — | attachment | View |
| 10 |  Lockbin | 5.9 | RecognisedAPIDocumented | $10/mo | Yes | 10 /user/mo | link | View |
| 11 |  PDF Postman | 5.9 | RecognisedAPIDocumented | $79.99/mo | Yes | — | attachment | View |
| 12 |  Send It Secure | 5.9 | RecognisedAPIDocumented | — | Yes | — | portal | View |
| 13 |  Secure Message | 5.7 | RecognisedAPIDocumented | — | Yes | — | link | View |
| 14 |  SecureMyEmail | 5.6 | RecognisedAPIDocumented | Free | Yes | — | — | View |
| 15 |  OpenText Core Email Message Privacy | 5.4 | RecognisedAPIDocumented | — | — | — | link | View |
| 16 |  Proofpoint Email DLP and Encryption | 5.4 | RecognisedAPIDocumented | — | — | — | portal | View |
| 17 | RMail | 5.4 | RecognisedAPIDocumented | — | — | — | attachment | View |
| 18 |  Mimecast Secure Messaging | 5.3 | RecognisedAPIDocumented | — | — | — | portal | View |
| 19 |  Sophos Secure Message | 5.3 | RecognisedAPIDocumented | — | — | — | — | View |
| 20 | Virtru Email Encryption | 5.3 | RecognisedAPIDocumented | $119/mo | No | — | link | View |
| 21 |  Cryptshare.express | 5.2 | RecognisedAPIDocumented | €0.42/mo | No | — | portal | View |
| 22 | OpenText Core Email Encryption | 5.2 | RecognisedAPIDocumented | — | — | — | portal | View |
| 23 |  Paubox Email Encryption | 5.2 | RecognisedAPIDocumented | $29/mo | No | — | link | View |
| 24 | KnowBe4 | 5.1 | RecognisedAPIDocumented | $2.40/mo | No | 2.4 /user/mo | — | View |
| 25 |  Microsoft Exchange Online | 5.1 | RecognisedAPIDocumented | — | No | — | — | View |
Is your platform on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which email encryption software is ranked first on Inferse?
DataMotion Secure Email Exchange is ranked #1 of 28 with a score of 7.3. MailHippo is second and Virtru Data Security Platform third.
How many of these have a free plan?
5 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Cryptshare.express has the lowest first paid tier we found: €0.42/mo.
How is this list ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it. Paid placements never change a rank.