SFLetter.com
Register a free email account
Secure email service
- protects against forwarding to third parties
- protects against copying and unauthorized
use of attachments
Email tracking
- by opening time and receiver’s IP address
Learn more about the features:
How to send a protected message
Register your new email account
Create a message and add an attachment
The service allows to send files in various formats.
Select protection option
You can protect attachments and/or an email message body.
By default, the service protects only attachments.
Additional options are available for premium users.
Send your message
You can send a protected message to any email service that is available on Windows.
Every protected email contains an instruction with a link to the Viewer Program
that allows recipients to open the protected email and its attachment.
Check when and where your email message was opened
with the "Opening history" feature
If you have any questions
about the service, please visit
FAQProduct Comparison
| Feature | Basic | Premium | Business |
| Email messages and attachments can be accessed only on the device where they were opened for the first time | |||
| Opening of secure emails and attachments on another device is prohibited | |||
| Printing is prohibited | |||
| Use of Print Screen and other screen grabbers is prohibited | |||
| Email tracking by opening time and receiver’s IP address | |||
| PDF and JPG/JPEG files support | |||
| DOC(X), XLS(X), RTF, PNG, and GIF files support | |||
| IMAP and SMTP support | |||
| Usual email sending (without protection) | |||
| Bulk protected emails | |||
| Time based access limitation to emails | |||
| Revoke access to sent emails | |||
| Managing the ability to read emails offline | |||
| Use of your own domain name for outgoing mail | |||
| Number of protected attachments per single email | 2 | Unlimited* | Unlimited* |
| Number of recipients per single email | 5 | Unlimited* | Unlimited* |
| Number of outgoing emails per hour | 10 | Unlimited* | Unlimited* |
| Storage limit | 500 MB. | 200 GB. | 200 GB. |
| * Determined by the settings of the email server to prevent spamming | |||
Solution for business
Secure email service that can be deployed for any company and organization
What problems are solved with protected email service
Minimizing the risk of leakage when information is shared with external recipients who can use received messages for other than the purpose specified, and transfer it to third parties (intentionally or accidentally).
Tracking documents that have left the perimeter of company's information system. Standard DLP-systems do not allow you to track messages that were sent to external recipients.
Deployment
The solution is deployed on the client’s side. Thanks to integration with the corporate email server, a standard email client gets a new feature - to provide protection for email messages and attachments. The protected emails are sent from a usual sender’s email address without any changes.
Be in touch
Please send all your comments and suggestions about how to improve the service to improve@sfletter.com
If you are having technical problems with the service, please contact support@sfletter.com
or fill in the feedback form