mkdir -p config
touch config/postfix-accounts.cf
docker run --rm
-e MAIL_USER=[email protected]
-e MAIL_PASS=password1
-ti tvial/docker-mailserver:latest
/bin/sh -c 'echo "$MAIL_USER|$(doveadm pw -s SHA512-CRYPT -u $MAIL_USER -p $MAIL_PASS)"' >> config/postfix-accounts.cf
docker run -p 25:25 -e maildomain=mail.example.com -e smtp_user=alex:password,hello:hello --name postfix-local -d catatnight/postfix