Can we give out the home address of an employee if someone wants to send them a card?
Ideally - better: in the longer term this will be a requirement - the personnel information system allows employees to specify whether their address details can be shared for post, gifts and the like. As long as this has not been arranged, the person who wants to send a card can have it posted by someone who, on the basis of their position, has access to the address details. If this is not possible for some reason, apply common sense. Do you have reason to doubt the sincerity of the request or do you have other objections? If not, you can share the address, preferably on a post-it and not as a digital file.