I'm using Exim v4.91 in a CentOS 7 server hosting more than one domain and I'd like to set up a group address/alias to forward mail messages to all addresses of a given domain (one for every domain). I.e. if I send an email to
firstname.lastname@example.org it would be sent to
*@example.com, all email to
email@example.com should be sent to
I've found how to set up catch-all aliases but what I want to achieve is the opposite, not an alias to receive all incoming messages but a forward-to-all-accounts all incoming messages.