docker-postfix

run postfix with smtp authentication (sasldb) in a docker container. TLS and OpenDKIM support are optional.

Command line

docker run -p 25:25 -p 587:587 -e maildomain= -e mydestination= -e smtp_user=user:pwd -v /root/domainkeys:/etc/opendkim/domainkeys -v /root/certs:/etc/postfix/certs --name postfix -d  vault/postfix

Note

• Login credential should be set to (username@mail.example.com, password) in Smtp Client
• You can assign the port of MTA on the host machine to one other than 25 (postfix how-to)
• Read the reference below to find out how to generate domain keys and add public key to the domain's DNS records