This is an outgoing forwarding-only Mail Transfer Agent (MTA) based on boky/postfix. Only other containers on the same host who are allowed to connect to the same Docker network can use this. You must provide your own upstream outgoing SMTP server which all mail will be forwarded to.
make config
Enter the domain name for this postfix instance:
POSTFIX_RELAY_TRAEFIK_HOST: Enter the domain name for this instance
: smtp.d.example.com
Enter the upstream SMTP server connection details:
POSTFIX_RELAY_RELAYHOST: Enter the outgoing SMTP server domain:port (eg. smtp.example.com:587)
: mail.example.com:465
POSTFIX_RELAY_RELAYHOST_USERNAME: Enter the outgoing SMTP server username
: [email protected]
POSTFIX_RELAY_RELAYHOST_PASSWORD: Enter the outgoing SMTP server password
: xxxxxxxxxxxxxxxxxxxx
Select which network subdomains should be masked at the root domain (this is optional, and can be used to hide private subdomains from the email headers):
POSTFIX_RELAY_MASQUERADED_DOMAINS: Enter the root domains (separated by space) that should mask its sub-domains
: example.com example.org
make install