mysql-server-4.1 and exim4 interdependency

[marc <gmane@auxbuss.com>]

Hi,

I'm using 3.1 stable.

When I add mysql-server-4.1, exim4 is added. When I try to remove exim4, 
mysql-server-4.1 is removed.

I see that this happens because mysql-server depends on mailx, and mailx 
depends on exim4.

I just wondered why these interdependencies exist.

-- 
Best,
Marc