2. Duration and termination. This agreement is valid if you accept the agreement or download, install, access and use it, even if you have not expressly accepted this agreement. This agreement remains in effect until the expiry or termination, as stipulated in the agreement (the “duration”). Long-term licenses will end at the end of the prepaid period, unless you have paid all the costs incurred to extend the life. Without prejudice to other rights, this Agreement will be automatically terminated for you without notice if you do not or do not comply with any of the restrictions or other requirements described here, including the payment of the costs incurred, and you agree that, in this case, Plesk may disable the Software remotely, in addition to any other legal recourse it may have. You can terminate this license agreement at any time by writing down your decision to terminate the contract with Plesk and ending the use of the software and documentation. In the event of termination or expiry of the agreement for any reason, you agree to uninstall the software and make plesk the software, documentation, copies and all license keys you received in Plesk, or destroy all these materials and provide Plesk with a written verification of this destruction. Plesk has also created a “Declaration on Cookies and Other Technologies” that describes the different types of cookies and technologies used on The Plesk website, the purpose of their use, as well as ways to avoid cookies and other technologies by editing your browser settings or actively performing opt-out actions. The Plesk statement on cookies and other technologies is available at www.plesk.com/legal/#cookie-statement. In your CLA, you expressly license your customers to make it clear that the limited use license is revocable and non-transferable. Here you can also identify warranties, limit your liability, describe the rules and limits of use of the license and describe what happens if the rules are violated. Unlike THE EULAs, free software licenses do not function as contractual extensions of existing legislation.
No agreement is ever reached between the parties, because a copyright license is merely a declaration of authorization for what would otherwise not be permitted by default under copyright.  4. YOUR DRIVING a) You understand that all information, data, texts, messages, written contributions and comments, software, scripts, graphics or other material (“content”), whether made public or transferred privately, is the sole responsibility of the person from whom the content originates. This means that you, not Plesk, are responsible for any content you download, post, provide or transmit through the Services. You state that all content you provide is correct, complete, current and compliant with all laws, rules and regulations applicable at national and international levels. Plesk may, but is not required to monitor or maintain content posted by you or by third parties on the Services and therefore does not guarantee the accuracy, integrity or quality of the content. 13. GENERAL INFORMATION a) These conditions represent the entire agreement between you and Plesk and govern your use of the Services which relay all previous agreements between you and Plesk (including, but not limited to previous versions of the Terms). You may also be subject to additional terms and conditions that may apply if you use other Plesk services, third-party content or third-party software. You cannot cede the conditions or rights granted to them, or transfer them by other means. Sections 3, 4, 5, 7, 10, 12 and 13 survive the termination of the conditions.
For the software developer, it is important to retain the rights to terminate the license in case of usage violation or other problems.