Secure email your way. Use native Outlook and Gmail integrations for user-driven encryption, or deploy the Serverless Email Gateway to automatically encrypt email across your organization using policy-based rules.
Your team keeps writing email. The attachments stop leaking.
Choose from two native plug-ins — one for Microsoft Outlook (desktop, web, and Microsoft 365) and one for Gmail in Chrome. Senders click the SendSafely button in the compose window to replace attachments with end-to-end encrypted secure links, or encrypt the entire email message instead. Recipients click the link, verify their identity, and download — no SendSafely account required on the other end.
Files and messages are encrypted on the sender's device with OpenPGP. Microsoft, Google, and SendSafely all see ciphertext only. The decryption key never sits in one place.
Hi Alex — attached are the signed contracts. Documents have been encrypted with SendSafely. You'll be asked to verify your identity before downloading.
Admin installs the plug-in once. When a message needs protection, the sender chooses the SendSafely attach button and picks the files — the add-in encrypts them on the sender's device, then the email goes out carrying a secure link instead of the raw file. It's a deliberate action in the sender's hands. Plaintext never leaves the machine.
The recipient has been notified. Files are stored encrypted and will expire on your configured schedule.
The SendSafely Outlook plug-in installs as a standard Office add-in. It adds an encrypted-attachment button to the Outlook ribbon so the sender can choose to send a file or message securely. Files and messages are encrypted on the sender's machine before they reach an Exchange or Microsoft 365 server.
The SendSafely Chrome extension adds optional 'Message Encryption' and “Attach with SendSafely” buttons to the compose window. Messages and Files are encrypted in the browser before they ever touch Google's servers and replaced with a one-time secure link. The same extension doubles as a standalone Chrome popup for non-Gmail sends.
Every plug-in attachment is encrypted on the sender's device using OpenPGP. Microsoft, Google, and SendSafely all see ciphertext only — the decryption key is split so nobody, not even SendSafely, can read the contents on its own.
Audited annually. SendSafely maintains the certifications regulated industries require.
No client install. Every sender covered automatically.
The Serverless Email Gateway runs inside your own AWS account and encrypts email automatically based on rules you define — no plug-in required on individual devices. Integrates with Office 365 Mail Flow Rules and Google Workspace Content Compliance so existing policies trigger encryption without any workflow change for senders.
Install the Outlook plug-in or the Gmail Chrome extension in minutes. Files up to 100 GB, end-to-end encrypted, no recipient account required.