Why Postfix need to be instaled with MySQL when using APT?

[amussa]

Hello all,

I would like to know why Postfix is automaticaly installed when installing MySQL using APT.

akil@porsche:~$ sudo aptitude install mysql-server
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Reading extended state information      
Initializing package states... Done
Building tag database... Done      
The following NEW packages will be automatically installed:
  libdbd-mysql-perl libdbi-perl liblockfile1 libnet-daemon-perl libplrpc-perl mailx mysql-client-5.0 
  mysql-server-5.0 postfix 
The following NEW packages will be installed:
  libdbd-mysql-perl libdbi-perl liblockfile1 libnet-daemon-perl libplrpc-perl mailx mysql-client-5.0 
  mysql-server mysql-server-5.0 postfix 
0 packages upgraded, 10 newly installed, 0 to remove and 0 not upgraded.
Need to get 34.0MB of archives. After unpacking 89.4MB will be used.
Do you want to continue? [Y/n/?] y
WARNING: untrusted versions of the following packages will be installed!

Thanks

[danf.1979]

Try using apt-get for that. IIRC, aptitude installs recommended packages along with the package you wish to install....