What the following email from 3CX means: Hi, Your 3CX Maintenance will expire in 10 days. It's crucial you stay up to date with active maintenance, so you can benefit from new and improved features, bug fixes and security updates. The newer versions are tested with the latest operating systems and IP phone firmware. We are constantly improving 3CX, and we release a new version every year as well as several updates each year. With active maintenance you have access to new versions and any updates that may be released. So why not renew your 3CX Maintenance now? It's easy and saves you money. Purchasing 3CX Maintenance renewal is easy just go to https://customer.3cx.com/orderform/support.aspx. Use a credit card or your PayPal account - it only takes a few minutes. 3CX Maintenance pricing is available here. When renewing your 3CX Maintenance, please have the following information available: Customer : xxx License Key: xxx Purchased: xxx Expiry: xxx You only have 10 days until your 3CX Maintenance expires, so we suggest you do this at your earliest convenience. Important: If 3CX manages your FQDN and security certificates for you, valid maintenance is required for us to continue to do so. When Maintenance or the key expires, the FQDN's and certificates will stop working. The FQDN's and certificates will be deleted 7 days after the expiry date. If you miss to renew your maintenance or key in time, you will need to perform a backup of your settings and reinstall 3CX. You have 90 days after the date of expiry to renew. If you fail to renew after the 90 day grace period, your PBX will be downsized to a 4SC Annual licence key. If you have any questions, please contact us. Does this means 3CX is punishing customers, if they don't renew their maintenance ?