[Dovecot] secure email server

[BONNET, Frank]

Hello

I have to setup a "secured" email server

- encrypted filesystem
- SSL or TLS only for SMTP and IMAPS
- Talking only to some known other same-secured servers

Any info/links welcome !

Please do not start some flame war around this !

I've been ordered to set up such server and I KNOW there are probably
security holes
but nothing's perfect so a starting point is necessary

*Thank you for any infos*