4
Send It Secure
Send It Secure is an encrypted messaging platform that lets people send protected messages to any email address through their existing email provider.
Free planiOSWebAPIExtension
7.5From $15 a month
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5
Virtru Data Security Platform
Virtru Data Security Platform protects sensitive information shared through email, files, SaaS applications, and mission partner environments.
AndroidiOSWebAPI
7.5From $119 a month
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6
gpg4o
gpg4o is a Windows add-in for Microsoft Outlook that encrypts and decrypts email messages and attachments, and can sign or check them.
Free planWindows
7.0From €5,195 a year
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7
MailHippo
MailHippo is a secure email messaging platform designed to protect patient data with HIPAA-compliant email.
WebAPIWindows
6.9From $4.95 a month
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8
Microsoft Exchange Online
AndroidiOSWebmacOS
6.9
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9
Secure Message
Secure Message is a self-hosted inbound email gateway that filters incoming mail before it reaches an existing mail server.
Free planWebLinuxSelf-hosted
6.9From $690 a year
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10
Mailvelope
Mailvelope adds client-side end-to-end email encryption using PGP to supported webmail services.
WebExtension
6.8From €3 a month
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11
DataMotion Secure Email Exchange
AndroidiOSWebAPI
6.6
Visit
12
Proofpoint Email DLP and Encryption
Proofpoint Email DLP and Encryption detects sensitive information in email and attachments to help organizations prevent data loss and automate compliance.
AndroidiOSWebWindows
6.6
Visit
13
FlowCrypt
FlowCrypt is an email encryption service offered as a Chrome extension, with other platforms and a mobile application also listed.
Free planExtension
6.5Free plan
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14
PDF Postman
PDF Postman is a Windows Outlook add-in that turns email messages and attachments into password-protected PDFs for sending.
Windows
6.5$69.99 one-time
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15
c.Email
c.Email adds encryption and verified sending to existing Gmail or Outlook addresses, so users can keep their current email address.
Free planExtension
6.4Free plan
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16
Mimecast Secure Messaging
Mimecast Secure Messaging helps organizations protect sensitive information sent by email, including financial records and customer data.
AndroidiOSWebmacOS
6.4
Visit
17
Cisco Catalyst Center
Cisco Catalyst Center is a centralized controller and management dashboard for enterprise network operations.
WebAPILinuxmacOS
6.2
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18
Encryptomatic OpenPGP
Encryptomatic OpenPGP is a Windows application for encrypting and signing messages and files, with Outlook integration.
Windows
6.2From $29.99 a year
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19
Sophos Secure Message
Sophos Secure Message is part of Sophos Email, a cloud service that protects inboxes from phishing, business email compromise, spam, and email-delivered malware.
Web
6.2
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20
GPG Suite
GPG Suite is a macOS collection for encrypting, decrypting, signing, and verifying files or email.
macOS
6.1€24 one-time
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21
Symantec PGP Gateway Email Encryption
WebLinuxSelf-hostedWindows
6.1
Visit
22
Trustifi Outbound Shield
Trustifi Outbound Shield scans outgoing email against administrator policies and automatically encrypts messages containing sensitive information.
WebAPIExtensionmacOS
6.1
Visit
23
KnowBe4
KnowBe4 is a cloud-based, web security awareness training service from KnowBe4, a company founded in 2010 and headquartered in Clearwater, Florida.
Web
5.9From $2.40 a month
Visit
24
OpenText Core Email Message Privacy
OpenText Core Email Message Privacy is a web-based service for securing sensitive messages and files while managing access after delivery.
Web
5.9
Visit
25
Paubox Email Encryption
Paubox Email Encryption is a web service for secure email delivery, presented for healthcare.
Web
5.8From $29 a month
Visit
26
Cryptshare.express
Cryptshare.express is a web service for sending attachments through a secure delivery portal.
Web
5.7
Visit
27
RMail
WebWindowsmacOS
5.6
Visit
28
Gpg4win
Gpg4win is free software for encrypting files and email on Windows.
Windows
5.5
Visit
29
Cisco Meraki Dashboard
Web
5.0
Visit
30
Webroot Security Awareness Training
Web
4.8
Visit

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