Email server - solution - encrypted email filesystem
 

Hello Gurus,

I would like to install nice email server. Till now I have

Debian 5 x64 + Postfix + Dovecot + Squirrel. Everything was fine till...

In last days my friend told me that he need safe private email account.
I told him that he can use one on my server. So... questions...

Is it possible to create realy private (only account owner has an access - root have an access to encrypted mailbox files) account on linux ?

Is it possible to encrypt email data and hide(encrypt) it even for a root ?

What kind of tools should I use ?

Do You know any good email server where user can be more flexy (for example can change email account password) ?

I`m looking for something like simple linux exchange server... Do You know something like this ?


I dont want to use anymore : system user + postfix + dovecot...

where can I find any good email server for linux ?



p.s. sorry for my english...

I am inclined to say that if you are using postfix + dovecot that you already have a good email server. You can easily add security and encryption to it by enabling TLS. You can host virtual domains, such as your friends domain and he can have his own user name and password. The messages aer stored in the location specified, and the directory can be encrypted. If you are concerned about this, it might be easiest to give your friend an account and encrypt his home directory while using mbox (in the user's home dir) for mail delivery. Otherwise I would suggest using MySQL to host a set of virtual users, domains, and alaiases.


If you are looking for flexibility in managing user (virtual) accounts on Postfix, take a look at the PHP based postfix admin.