[Pkg-exim4-users] suggestion on exim configuration

[Fabrizio Lippolis]

Hi list,

the firm where I work wants to migrate from an obsolete Exchange server 
to something newer and more performant. Since I am a debian user I 
suggested that exim could be a good solution and integrate it with 
spamassassin and an antivirus software like clamav.

At the moment I am concentrating on the exim configuration, it has to 
handle multiple domains. A simplified scenario should be like this, 
three users (user1, user2 and user3) and two domains (domain1, domain2) 
so that

user1 at domain1
user1 at domain2

are two different mail accounts (receive the same mail) and

user2 at domain1
user3 at domain2

receive the same mail.

Until now I have created only basic configurations so I need an advice 
on how to behave the right way for a production mail server handling 
multiple domains and users. Thank you for possible answers.

Fabrizio