jeremybusk/docker-postfix-sasl-dkim

Alpine postfix + cyrus-sasl + dkim

Docker hub

• https://hub.docker.com/r/hillliu/postfix-sasl-dkim

Test auth

• docker-compose up
• docker-compose exec mail sh
• apk add busybox-extras
• telnet localhost 25
• EHLO mail.example.com
• AUTH PLAIN AHRlc3RfdXNlckBtYWlsLmV4YW1wbGUuY29tAHRlc3RfcGFzc3dvcmQ=

get password with base64

echo -ne '\000test_user@mail.example.com\000test_password' | openssl base64

Test send mail

Test mail with telnet

• HELO mail.example.com
• MAIL FROM: test@mail.example.com
• RCPT TO: your@mail.example.com
• data
• Subject: test message
• From:
• To:
• press enter twice
• /* Wirte something */
• .
• QUIT

Test mail with script

#!/bin/bash

DIR="$( cd "$(dirname "$0")" ; pwd -P )"
MAIL_FROM=test@mail.example.com
MAIL_TO=$1
MAIL_SUBJECT=test-subject
MAIL_BODY=test-body
MTA_HOST=localhost
MTA_USER=test_user@mail.example.com
MTA_PASSWORD=test_password

${DIR}/support/sendemail -f $MAIL_FROM -t $MAIL_TO -s $MTA_HOST -xu $MTA_USER -xp $MTA_PASSWORD -u $MAIL_SUBJECT -m $MAIL_BODY