The email service is running on a linux machine and uses postfix and dovecot together with rspamd.
The storage which holds the emails is encrypted and all connections via pop3, imap or smtp needs to be TLS 1.2 encrypted.
It's possible to access the mailservice via Webmailer or any device or software which is able to use smtp, imap and pop3.
Common Mailing Software:
/!\ ATTENTION /!\
eMails on my servers are stored on an encrypted disk, and are encrypted by itself. I try to provide a good privacy and safety to your mails. However: You are NOT immune to law enforcement!
According to new laws in the EU, I HAVE TO comply with law enforcement if they approach me and show me a valid search warrant!
This means I have to give a copy of your whole email account to law enforcement or - if they request it - give them access to your account.
Thats why I can only give you these advices: