From the personal Inbox of the exim4 maintainer
The DDs reading this might know the situation: You are subscribed to a gazillion of mailing lists, and spend quite some time answering questions of people using your packages. That's fine, service to your users. Occasionally, users take great pains in finding out a personal mail address (for example, by googling, and finding the webmasteridiot mail address on my personal web page) to ask their question in private e-mail. This prevents the answers from showing up in mail archives and deprives the public of a possibility to find a solution to this question themselves in the future.