Best Email Encryption Software in 2026
Updated
28 email encryption software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
28ranked
0free plans on this page
5 Oct 2026last checked
Input list Email Encryption Software 3 channels on this page · 6 of 24 spec lines stated by the makers
Ch Tool Free planPaid fromSecure deliveryRecipient verificationMessage expiryAttachment limitOutlook integrationGmail integration Spec sheet Score
26 OpenText Core Email Encryption Free plannot statedPaid fromnot statedSecure deliveryportalRecipient verificationpasswordMessage expiryYesAttachment limitnot statedOutlook integrationYesGmail integrationnot stated 4/8spec lines stated 5.9
27 Microsoft Exchange Online Free planNoPaid fromnot statedSecure deliverynot statedRecipient verificationnot statedMessage expirynot statedAttachment limitnot statedOutlook integrationnot statedGmail integrationnot stated 1/8spec lines stated 5.7
28 GPG Suite Free planNoPaid fromnot statedSecure deliverynot statedRecipient verificationnot statedMessage expirynot statedAttachment limitnot statedOutlook integrationnot statedGmail integrationnot stated 1/8spec lines stated 5.5
Compare all 3 in a table
| # | Tool | Score | Free plan | Free plan | Paid from | Secure delivery | Recipient verification |
|---|---|---|---|---|---|---|---|
| 26 | OpenText Core Email Encryption | 5.9 | No | — | — | portal | password |
| 27 | Microsoft Exchange Online | 5.7 | No | No | — | — | — |
| 28 | GPG Suite | 5.5 | No | No | — | — | — |