Sendinc
Web-based email encryption service with a free plan: send encrypted messages that recipients open in a browser, no software needed.
Our take: Sendinc lets you send an encrypted email without asking the recipient to install software: they open the message in a web browser.
Conversion Gems is an independent review site, not Sendinc. Sendinc is a web-based email encryption service: you send encrypted messages from your existing email address, and recipients read them in a web browser without installing anything. The Basic plan is free; Pro costs $57.40 per user per year, and Corporate is the same price per user with a five-license minimum.
A low-cost way to send encrypted email to people who won't install anything; check the daily limits before you rely on it.
Our score
Reviewed by the Conversion Gems editorial team. Hover a facet to focus it; click to pin.Tap a facet to focus it.
What it is, and why we rate it
One line each. Open a row for detail.
Our takeSendinc lets you send an encrypted email without asking the recipient to install software: they open the message in a web browser.
Why we rate itRecipients don't need software or an install, which removes the usual obstacle with encrypted email.
The catchThe free plan deletes messages after 7 days and caps you at 20 recipients a day.
Best / not good for
- Professionals who send confidential documents to outside recipients
- Small businesses that want encrypted email in Outlook
- Developers adding encrypted email through SMTP or a REST API
- Large enterprises needing automated DLP policy enforcement and archiving
- Teams wanting true end-to-end encryption without relying on a third-party portal
- High-volume bulk secure messaging beyond 200 recipients/day
Friction report
Trade-offs to know before signing up.
- Time to valueFast: create a free account on the website and send from the web app; the Outlook add-in is an optional install.
- Scale breakpointPaid plans are priced per user; Corporate needs at least 5 licenses and lists volume discounts.
- Walled gardenModerate: recipients read messages on Sendinc's web portal, and free-plan messages expire after 7 days.
Sendinc pricing
| Plan | Price | Limits and features |
|---|---|---|
| Basic | Free | 7-day message retention, 100MB storage, 10MB max message size, 20 recipients per day |
| Pro | $57.40 per user per year | Unlimited retention, 10GB storage, 200MB max message size, 200 recipients per day, custom expiration, message retraction, message auditing |
| Corporate | $57.40 per user per year (minimum 5 licenses) | Pro features per user, plus admin tools, cobranding and volume discounts |
From Sendinc's plan pages, checked 3 October 2026. One Sendinc page lists Pro at 200 messages and 100 recipients per day instead of 200 recipients per day.
Frequently Asked Questions
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