Best OpenText Core Email Encryption Alternatives in 2026
The top OpenText Core Email Encryption alternatives are FlowCrypt, c.Email and Mailvelope: 15 email encryption software our editors would look at instead of OpenText Core Email Encryption, in our ranking order.
OpenText Core Email Encryption: A compliance-focused email encryption service with DLP controls and flexible delivery. Where it falls short: pricing requires contacting sales.
Switching from OpenText Core Email Encryption? For most email encryption software buyers the best OpenText Core Email Encryption alternative is FlowCrypt, built for openPGP users needing broad device coverage. On a budget, MailHippo starts at $4.95/user/mo. Cryptshare.express offers the most attachment limit (10240 MB).
Why People Look for an OpenText Core Email Encryption Alternative
- Pricing requires contacting sales
- Available platform is web only
- Recipient verification uses passwords
Quick Picks by What You Need
- Best overallFlowCrypt9.4
OpenPGP users needing broad device coverage
Visit FlowCrypt - Lowest priceMailHippo7.7
Paid plans from $4.95/user/mo
Visit MailHippo - Best free optionFlowCrypt9.4
Has a free plan
Visit FlowCrypt - Most attachment limitCryptshare.express7.8
10240 MB
Visit Cryptshare.express
All 15 OpenText Core Email Encryption Alternatives, Ranked
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.
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Best forOpenPGP users needing broad device coverage
- Better than OpenText Core Email Encryption:
- Editor score 9.4 vs 7.0
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
- Better than OpenText Core Email Encryption:
- Editor score 9.2 vs 7.0
A free, open-source option for encrypted Gmail and Outlook email.
9.2/10★★★★★Visit c.Email -
Best forBusinesses wanting affordable OpenPGP workflows
- Better than OpenText Core Email Encryption:
- Editor score 9.0 vs 7.0
A browser-based OpenPGP option with broad webmail support and organization controls.
- Gmail integration
- Outlook integration
- Admin access controls
9.0/10★★★★☆Visit Mailvelope -
Best forMulti-account encryption across desktop and mobile
- Better than OpenText Core Email Encryption:
- Editor score 8.8 vs 7.0
A flexible encryption layer for Gmail, business mail, and multiple devices.
8.8/10★★★★☆Visit SecureMyEmail -
Best forOrganizations needing governed secure delivery
- Better than OpenText Core Email Encryption:
- Editor score 8.7 vs 7.0
A governed secure-email service for organizations that need controlled delivery and auditability.
- Gmail integration
- Message expiry
- Outlook integration
8.7/10★★★★☆Visit DataMotion -
Best forLarge enterprises needing integrated controls
- Better than OpenText Core Email Encryption:
- Editor score 8.6 vs 7.0
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
- Better than OpenText Core Email Encryption:
- Editor score 8.5 vs 7.0
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
- Better than OpenText Core Email Encryption:
- Editor score 8.4 vs 7.0
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
- Better than OpenText Core Email Encryption:
- Editor score 8.3 vs 7.0
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
- Better than OpenText Core Email Encryption:
- Editor score 8.2 vs 7.0
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
- Better than OpenText Core Email Encryption:
- Editor score 8.1 vs 7.0
Enterprise email and data protection with encryption, controls, integrations, and compliance tiers.
8.1/10★★★★☆Visit Virtru -
Best forEnterprises needing advanced email DLP
- Better than OpenText Core Email Encryption:
- Editor score 8.0 vs 7.0
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
- Better than OpenText Core Email Encryption:
- Editor score 7.9 vs 7.0
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
- Better than OpenText Core Email Encryption:
- Editor score 7.8 vs 7.0
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
- Better than OpenText Core Email Encryption:
- Editor score 7.7 vs 7.0
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
OpenText Core Email Encryption Alternatives: Common Questions
What is the best alternative to OpenText Core Email Encryption?
FlowCrypt: #1 in our Email Encryption Software ranking, with an editor score of 9.4 out of 10. A broad OpenPGP option for Gmail and mobile users, with enterprise controls for managed deployments.
Is there a free alternative to OpenText Core Email Encryption?
Yes. FlowCrypt, c.Email, Mailvelope, SecureMyEmail and DataMotion Secure Email Exchange have a free plan or a free tier (6 of the 15 alternatives on this page).
What is the cheapest paid alternative to OpenText Core Email Encryption?
Of the alternatives here that publish a price, MailHippo starts lowest, at $4.95/user/mo.
Why do people look for OpenText Core Email Encryption alternatives?
Pricing requires contacting sales; Available platform is web only; Recipient verification uses passwords.
Which OpenText Core Email Encryption alternative has the most attachment limit?
Cryptshare.express, with 10240 MB.
How do I switch from OpenText Core Email Encryption?
Export your data from OpenText Core Email Encryption (most tools have an export in their settings). Sign up for the alternative; start on its free plan or trial if it has one. Import your export and set up the integrations your team relies on. Run both side by side for a short while, then cancel OpenText Core Email Encryption.
How to Switch from OpenText Core Email Encryption
- Export your data from OpenText Core Email Encryption (most tools have an export in their settings).
- Sign up for the alternative; start on its free plan or trial if it has one.
- Import your export and set up the integrations your team relies on.
- Run both side by side for a short while, then cancel OpenText Core Email Encryption.
OpenText Core Email Encryption vs Each Alternative
| # | Tool | Free plan | Paid from | Secure delivery | Recipient verification | Message expiry | Attachment limit | Score |
|---|---|---|---|---|---|---|---|---|
| 22 | OpenText Core Email Encryption | Portal | Password | 7.0 | ||||
| 1 | FlowCrypt | Yes | Link | Password | Yes | 25 MB | 9.4 | |
| 2 | c.Email | Yes | Free | 9.2 | ||||
| 3 | Mailvelope | Yes | €32.40/user/yr | Attachment | Identity | 50 MB | 9.0 | |
| 4 | SecureMyEmail | Yes | 8.8 | |||||
| 5 | DataMotion Secure Email Exchange | Yes | Portal | Identity | Yes | 50 MB | 8.7 | |
| 6 | Virtru Email Encryption | No | $119/mo | Link | Identity | Yes | 150 MB | 8.6 |
| 7 | Send It Secure | Yes | Portal | Identity | Yes | 50 MB | 8.5 | |
| 8 | Trustifi Outbound Shield | No | Link | Password | Yes | 8.4 | ||
| 9 | RMail | Attachment | Password | Yes | 10 MB | 8.3 | ||
| 10 | Paubox Email Encryption | No | $29/mo | Link | Password | No | 150 MB | 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 | 10240 MB | 7.8 |
| 15 | MailHippo | No | $4.95/user/mo | Portal | Password | Yes | 50 MB | 7.7 |
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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