Hi Karim,
You can remove the address if you no longer need to receive support or updates… but it needs to know the address of the updraftplus.com account being used for access to updates. If you’re handing over the site 100% to someone else (i.e. not managing it) so that it’s nothing to do with you any more, then that “someone else” should get their own licence (if licences could be passed on to other people and those other people still qualified for customer service for us, then we’d go bankrupt, as someone could just resell our ‘unlimited’ licence at whatever price they liked!). As someone with an ‘unlimited’ licence, you qualify to receive cut-price licences for your customers, so drop us a line at [email protected] to get one.
Best wishes,
David