Frequently Asked Questions

What is is a Secure Transport Service for your most critical business data in motion. Whether it’s large x-ray images or sensitive financial documents, with you can start your secure communication in just a few minutes thanks to maximum user-friendliness and minimal IT requirements. More than 18 years of experience in email security and the transfer of large files distilled into a few simple steps.

Learn more about on our homepage.

How much does it cost?

A total of €60 per year and user if you pay the entire term in advance.
A total of €96 per year and user if you want to pay monthly instalments of €8.

Learn more on our pricing page.

How does it work?

You can use in two ways:

With our web application (or for Dutch users), you can send secure messages and large files directly from your browser. If you want to work with Outlook as usual, our Outlook Add-In offers a simple and convenient solution.

Further information and detailed instructions can be found in our User Guide.

What payment options are available?

In Germany, Austria, and the Netherlands, we accept payment by direct debit and credit card. In other countries, we currently only accept payment by credit card. We accept VISA and MasterCard.

What does "per user" mean?

A user consists of first name, last name and an email address. Only individual mailboxes are permitted for creating email users. The use of collective mailboxes is not permitted. Please also read our Terms of Use.

Where can I find legal information?

Details on imprint, data protection, privacy, terms of use, and general terms and conditions can be found here.

Is there a free trial version?

No, we do not offer a trial version for However, you can access the Cryptshare demo system at any time. In terms of functionality, it is almost identical to

How do I sign up?

Please click on "Sign Up" on the welcome page or on the navigation at the bottom of the page, and then fill out the form. After you have created your business account, you can create your first user. A short introduction can be found in our Quick Start Guide and a detailed description in our User Guide.

Where can I find downloads?

You can download the browser integration and the add-in for Office 365 & Outlook here.

How do I install the Outlook Add-in?

Simply download the installer, then run it and follow the installation programme. Detailed instructions can be found in our User Guide.

I have registered. Why can I not send mails?

  • In addition to the actual business account that you use to manage your subscriptions, you can also create email users. To be able to use, you must have created at least one user.
  • If you have problems using, please send a support request by email and describe the problem in as much detail as you can. Our support staff will then contact you as soon as possible.

Where can I view my invoices?

Log in with your business account and navigate to "User Subscription". Then click on "Manage" and scroll down to the "Your Invoices" section under the relevant user. Here you can view the invoices for the user and download them as PDF files, if required.

Do you offer an order data processing agreement (DPA)?

Yes, we do. You can download the latest version by logging into your business account and navigating to the "Business Account" tab. Here you can download a template as a PDF file at the bottom of the page.

Can I change the data of an existing e-mail user?

No, it is not possible to change user data after successfully subscribing them.

How can I change payment data?

Log in with your business account and navigate to "User Management". Then click on "Manage" below the corresponding user. You will find the "Your Payment Data" section in the upper right corner. Here you can click on "Change" to change your payment method or enter new payment data. In case, that there is a saldo in your account, the payment will be triggert again.

How can I cancel subscriptions?

Log in with your business account and navigate to "User Management". Then click on "Manage" below the corresponding user and scroll down to the "Current subscription" section. Here you can cancel the subscription for the respective user by clicking on "Cancel subscription".

Can I learn more about Cryptshare?

Yes! Please click here to read our general FAQ about Cryptshare.