Community support

For free support, please subscribe to the stunnel-users mailing list. Be polite and helpful to other subscribers.

Commercial support

Examples of services provided under our commercial support contracts:

• Help with functionality and security configuration
• Fixing identified stunnel bugs
• Performance tuning
• Building custom Linux binary packages, such as:
  • RPM: Red Hat, CentOS, Fedora
  • DEB: Ubuntu, Debian
  • Architectures other than x86_64
• Building custom Windows executables, such as:
  • FIPS support
  • Different OpenSSL versions
  • 32-bit platform support
• Building custom Windows installers:
  • Pre-installing custom configuration and peer certificates

We offer several response-time options, including a 24/7/365 helpline. Fees are negotiated individually based on the number of stunnel users and the required service level.

Alternatively, our basic support plan can be purchased online for $740 or €690:

• Up to 10 hours of email support to be used within 3 months
• A maximum response time of 2 working days

Contact us if you have any questions.

Commercial licenses

Do you want to distribute a modified version of stunnel without sharing the source code for your modifications? Do you want to distribute stunnel linked against GPL-incompatible code, such as cryptographic engine drivers? We are ready to negotiate a suitable license for you!

Adding new features

Do you need a new feature that is not currently supported by stunnel? We will add it for you!