new administrator: please help me choose news server

[Zhang Weiwu]

Matthew Seaman wrote:

>Another consideration you will want to bear in mind: do you want to
>give all of your e-mail users full blown accounts on your mail server,
>or do you want to provide and 'e-mail only' service?  If the latter,
>you will need to look at the more 'professional' solutions, which are
>designed to work generally on a larger scale and which tend to be a
>bit more complicated to set up.  The Cyrus stuff is the extreme
>expression of that.
>  
>
Oh I'm a new administrator, I'm frightened:) It seems if I want it to 
extend to max ability in future I should use Cyrus. I'll search more on 
this topic.