after i learn how to configure SSL on website now is time to think to set correctly the certificate for Dovecot,
When i use my email addresses managed by my VPS server the certificate is a server certificate imap.example.com so not work well when i try to configure the email in some client.
Also i see Dovecot are not setup for use the best encription security.
The first step i have to learn is how to configure TLS and SSL for work well..
I see in Dovecot i have this:
# SSL protocols to use
#ssl_protocols = !SSLv2
# SSL ciphers to use
#ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:!aNULL
Is this good? Maybe not.. is better to set encriprion to 128, 256 bit also for email?
Thanks to who want help me.