Mail Services "Opinion"

[Support <support@leaderuniversal.com>]

Hi! Debian Users

Need some info about Mail Server. There are some request from my
management about Mail Services.Below are the list. Need your
opnion.

1). Must can support multiple domain. I have Domain for abc.com.my and
cde.com.my 
2). The email user must can be control to become a local user or
external user. 
local user - only can send email between domain, it mean that user
from domain abc.com.my can send email to cde.com.my but can't send to
other beside this two domain. 
3). all outgoing email must can be store at one location for top
management to view if upon request. (if possible by selected
user) 
4). all incoming email must can be store at one location for top
management to view back upon request. (If possible by selected
user) 
5). all incoming or out going email with attachment must can be on
hold by postmaster for checking purpose, before release to user or send
out. 
6). email from specify address must can be forward to special
account for checking purpose. example I have user1 which can send and
received external email. but I don't him to received email from user
abc@abc.com ,so any email from
abc@abc.com will not reach to user1 account
but will reach to postmaster account.




Thank You
Support