dovecot container for IMAP server.

docker build --tag=docker .

Command for running dovecot docker container:

docker run -it -e MYHOSTNAME=localhost -e DEBUG_MODE \
    -v $PASSWD=/etc/passwd --privileged \
    -v $SHADOW=/etc/shadow \
    dovecot

Environment variable DEBUG_MODE is used for debugging proposes from Postfix and dovecot point of views. If you want to share host users to container add -v $PASSWD and -v $SHADOW parameters with --privileged parameter.

Command for testing Dovecot container with is openssl.

Telnet has not to be used because of all communication is encrypted from the beginning.

Testing dovecot service with openssl

openssl s_client -starttls imap -connect localhost:143