The Best Email Encryption Software in 2026
We researched email encryption software using official websites, including pricing pages, plan tables, and product documentation. Products were ranked on their core encryption and secure-delivery capabilities, value for money, and verified features for controlling access to confidential email communications.
Our top picks
-
Top ranked
FlowCrypt#1 of 299.4/10A broad OpenPGP option for Gmail and mobile users, with enterprise controls for managed deployments.
Free plan
-
Runner-up
c.Email#2 of 299.2/10A free, open-source option for encrypted Gmail and Outlook email.
Free plan
-
Top-ranked free plan
Mailvelope#3 of 299.0/10A browser-based OpenPGP option with broad webmail support and organization controls.
Free plan · 14-day trial
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
The full ranking 29 tools, best first
-
Best forOpenPGP users needing broad device coverage
A broad OpenPGP option for Gmail and mobile users, with enterprise controls for managed deployments.
- Gmail integration
- Message expiry
- Outlook integration
9.4/10★★★★★Visit FlowCrypt -
Best forFree modern encryption with Gmail or Outlook
A free, open-source option for encrypted Gmail and Outlook email.
9.2/10★★★★★Visit c.Email -
Best forBusinesses wanting affordable OpenPGP workflows
A browser-based OpenPGP option with broad webmail support and organization controls.
- Gmail integration
- Outlook integration
- Admin access controls
Free plan · 14-day trial Our Mailvelope verdict → Visit MailvelopeFor vendors Sponsor this spot · #3 · $79/mo →9.0/10★★★★☆Visit Mailvelope -
Best forMulti-account encryption across desktop and mobile
A flexible encryption layer for Gmail, business mail, and multiple devices.
Free plan · 30-day trial Our SecureMyEmail verdict → Visit SecureMyEmailFor vendors Sponsor this spot · #4 · $69/mo →8.8/10★★★★☆Visit SecureMyEmail -
Best forOrganizations needing governed secure delivery
A governed secure-email service for organizations that need controlled delivery and auditability.
- Gmail integration
- Message expiry
- Outlook integration
Free plan · pricing on request Our DataMotion Secure Email Exchange verdict → Visit DataMotionFor vendors Sponsor this spot · #5 · $59/mo →8.7/10★★★★☆Visit DataMotion -
Best forLarge enterprises needing integrated controls
A broad email security platform for enterprises with advanced control requirements.
- Gmail integration
- Message expiry
- Outlook integration
8.6/10★★★★☆Visit Virtru -
Best forTeams sending secure messages through Outlook
A flexible encryption platform for teams sending protected messages through Outlook.
- Message expiry
- Outlook integration
- Admin access controls
8.5/10★★★★☆Visit Send It Secure -
Best forEnterprises automating outbound email protection
A policy-driven email security layer for protecting sensitive outbound messages.
- Gmail integration
- Message expiry
- Outlook integration
8.4/10★★★★☆Visit Trustifi -
Best forBusinesses needing tracking and secure replies
A broad email security suite for teams that need encryption, tracking, and secure replies.
- Gmail integration
- Message expiry
- Outlook integration
8.3/10★★★★☆Visit RMail -
Best forGoogle or Microsoft teams needing email security
A healthcare-focused email security suite with encryption, threat protection, DLP, and archiving.
- Gmail integration
- Outlook integration
- Admin access controls
8.2/10★★★★☆Visit Paubox -
Best forEnterprises protecting email and shared data
Enterprise email and data protection with encryption, controls, integrations, and compliance tiers.
8.1/10★★★★☆Visit Virtru -
Best forEnterprises needing advanced email DLP
A policy-driven email DLP and encryption suite for controlled outbound communication.
- Message expiry
- Outlook integration
- Admin access controls
8.0/10★★★★☆Visit Proofpoint -
Best forMature Outlook-based enterprise deployments
A strong fit for enterprises that need Outlook-led encryption with policy controls.
- Message expiry
- Outlook integration
- Admin access controls
7.9/10★★★★☆Visit Mimecast -
Best forOutlook users sending very large files
A focused Outlook-friendly service for encrypted messages and transfers up to 10 GB.
- Message expiry
- Outlook integration
7.8/10★★★★☆Visit Cryptshare -
Best forSmall teams needing low-cost portal encryption
A low-cost secure email portal with recall, API access, and Outlook support on Pro.
- Gmail integration
- Message expiry
- Outlook integration
7.7/10★★★★☆Visit MailHippo -
Best forSmall teams needing simple secure links
A straightforward secure-link service with useful file, form, and retention controls.
- Message expiry
- Admin access controls
7.6/10★★★★☆Visit Lockbin -
Best forWindows Outlook users needing OpenPGP
A focused Outlook add-in for Windows users who need OpenPGP encryption and signing.
- Outlook integration
- Admin access controls
7.5/10★★★★☆Visit gpg4o -
Best forFree open-source Windows OpenPGP and S/MIME
A free, open-source Windows toolkit for OpenPGP and S/MIME email encryption.
- Outlook integration
- Admin access controls
7.4/10★★★★☆Visit Gpg4win -
Best forOutlook Classic users needing affordable OpenPGP
A focused OpenPGP add-in for Outlook Classic users who need local encryption.
- Outlook integration
- Admin access controls
7.3/10★★★★☆Visit Encryptomatic -
Best forMicrosoft environments using encrypted portals
A Microsoft-focused option for sending sensitive email through portals or encrypted PDFs.
- Message expiry
- Outlook integration
- Admin access controls
7.2/10★★★★☆Visit Sophos -
Best forSecure large-file exchange with Outlook
A strong fit for Outlook-based secure exchange of large files and controlled messages.
- Message expiry
- Outlook integration
7.1/10★★★★☆Visit OpenText -
Best forPolicy-driven encryption and compliance teams
A compliance-focused email encryption service with DLP controls and flexible delivery.
- Admin access controls
7.0/10★★★★☆Visit OpenText -
Best forMail gateway administrators
A gateway for filtering, outbound encryption, verification and mail administration.
- Message expiry
- Admin access controls
6.9/10★★★☆☆Visit Secure Message -
Best forWindows Outlook users encrypting PDF messages
A focused Outlook add-in for sending password-protected PDF messages and attachments.
- Outlook integration
- Admin access controls
6.8/10★★★☆☆Visit PDF Postman -
Best forMac users relying on Apple Mail
A focused Mac suite for encrypted email, files, folders, and key management.
6.7/10★★★☆☆Visit GPG Suite -
Best forGateway-based policy enforcement
A gateway-first choice for organizations enforcing outbound email encryption centrally.
- Message expiry
- Admin access controls
6.6/10★★★☆☆Visit Broadcom -
Best forTeams improving email security awareness
A strong phishing-awareness platform, but not a substitute for email encryption.
6.5/10★★★☆☆Visit KnowBe4 -
Best forOrganizations wanting email infrastructure with DLP
A broad business email service with DLP and administration, but no dedicated encryption focus.
6.4/10★★★☆☆Visit Microsoft -
Best forNetwork teams managing Cisco infrastructure
A capable Cisco network management system, but not an email encryption product.
5.1/10★★★☆☆Visit Cisco
No tools match those filters.
Compare at a glance
| # | Tool | Free plan | Paid from | Secure delivery | Recipient verification | Message expiry | Score |
|---|---|---|---|---|---|---|---|
| 1 | FlowCrypt | Yes | Link | Password | Yes | 9.4 | |
| 2 | c.Email | Yes | Free | 9.2 | |||
| 3 | Mailvelope | Yes | €32.40/user/yr | Attachment | Identity | 9.0 | |
| 4 | SecureMyEmail | Yes | 8.8 | ||||
| 5 | DataMotion Secure Email Exchange | Yes | Portal | Identity | Yes | 8.7 | |
| 6 | Virtru Email Encryption | No | $119/mo | Link | Identity | Yes | 8.6 |
| 7 | Send It Secure | Yes | Portal | Identity | Yes | 8.5 | |
| 8 | Trustifi Outbound Shield | No | Link | Password | Yes | 8.4 | |
| 9 | RMail | Attachment | Password | Yes | 8.3 | ||
| 10 | Paubox Email Encryption | No | $29/mo | Link | Password | No | 8.2 |
| 11 | Virtru Data Security Platform | No | $119/mo | 8.1 | |||
| 12 | Proofpoint Email DLP and Encryption | Portal | Yes | 8.0 | |||
| 13 | Mimecast Secure Messaging | Portal | Yes | 7.9 | |||
| 14 | Cryptshare.express | No | €5/user/mo | Portal | Password | Yes | 7.8 |
| 15 | MailHippo | No | $4.95/user/mo | Portal | Password | Yes | 7.7 |
| 16 | Lockbin | Yes | $10/mo | Link | Password | Yes | 7.6 |
| 17 | gpg4o | Yes | Attachment | Identity | No | 7.5 | |
| 18 | Gpg4win | Yes | Free | Attachment | Identity | 7.4 | |
| 19 | Encryptomatic OpenPGP | Yes | $29.99/unit/yr | 7.3 | |||
| 20 | Sophos Secure Message | Password | Yes | 7.2 | |||
| 21 | OpenText Core Email Message Privacy | Link | Yes | 7.1 | |||
| 22 | OpenText Core Email Encryption | Portal | Password | 7.0 | |||
| 23 | Secure Message | Yes | $690/unit/yr | Link | Yes | 6.9 | |
| 24 | PDF Postman | Yes | $79.99 one-time | Attachment | Password | 6.8 | |
| 25 | GPG Suite | No | 6.7 | ||||
| 26 | Symantec PGP Gateway Email Encryption | Password | Yes | 6.6 | |||
| 27 | KnowBe4 | No | $2.40/seat/mo | 6.5 | |||
| 28 | Microsoft Exchange Online | No | 6.4 | ||||
| 29 | Cisco Catalyst Center | 5.1 |
Head-to-head All 28 comparisons →
- FlowCrypt vs c.Email
- FlowCrypt vs Mailvelope
- FlowCrypt vs SecureMyEmail
- FlowCrypt vs DataMotion Secure Email Exchange
- FlowCrypt vs Virtru Email Encryption
- FlowCrypt vs Send It Secure
- FlowCrypt vs Trustifi Outbound Shield
- c.Email vs Mailvelope
- c.Email vs SecureMyEmail
Explore other topics All topics →
- AI Tools 303 directories · 8,269 tools ranked AI Writing Tools · AI Video Generators · Text-to-Speech Software
- Web Hosting & Domains 275 directories · 6,107 tools ranked Shared Web Hosting · Managed Cloud Hosting · Dedicated Server Hosting
- Productivity 157 directories · 4,948 tools ranked Note-Taking Apps · Calendar Apps · Project Management Software
- Marketing 135 directories · 3,977 tools ranked SEO Tools · Influencer Marketing Platforms · Email Marketing Software
- Sales & CRM 152 directories · 4,161 tools ranked Real Estate CRM Software · CRM Software · Proposal Software
- Customer Service 55 directories · 1,547 tools ranked Chatbot Builders · Knowledge Base Software · Call Center Software
How we rank email encryption software
Every tool on this page was researched by iTechGuides Editors from its official website — pricing pages, plan tables and product documentation. We rank on how well each one does this category's core job, what the free or entry plan includes, and where it falls short. Where we have enough verified facts, the score out of 10 is a rubric — job fit, value and how much we could verify — shown with its breakdown on every tool's page; a tool we have not verified enough to score yet shows its rank without a number. Scores are re-checked when a product changes its plans. Read the full editorial policy, or submit a tool we missed.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update