https://github.com/dnknth/docker-postfix

Minimal Postfix for Docker with relay support
https://github.com/dnknth/docker-postfix

alpine-linux docker-image postfix

Last synced: 29 days ago
JSON representation

Minimal Postfix for Docker with relay support

• Host: GitHub
• URL: https://github.com/dnknth/docker-postfix
• Owner: dnknth
• License: gpl-2.0
• Created: 2018-10-09T17:16:24.000Z (about 6 years ago)
• Default Branch: master
• Last Pushed: 2024-09-09T19:58:20.000Z (3 months ago)
• Last Synced: 2024-09-10T00:30:02.726Z (3 months ago)
• Topics: alpine-linux, docker-image, postfix
• Language: Shell
• Homepage:
• Size: 9.77 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

Awesome Lists containing this project

README

        
# What's this?

A very minimal Postfix image for Docker with relay support.

It provides outbound SMTP only, to get mails out of Docker.

The image is optimized for size (< 10MB) and simplicity.

## Usage

Start Postfix standalone (to send emails from containers)

    docker run --rm --name=postfix \

        -e  MTP_HOST=foo.com \

        dnknth/alpine-postfix

Or use a remote relay server:

    $ docker run --rm --name=postfix \

        -e MTP_HOST=foo.com \

        -e MTP_RELAY=smtp.gmail.com \

        -e MTP_USER=foo \

        -e MTP_PASS=secret \

        dnknth/alpine-postfix

Send emails:

    docker exec -it postfix mail [email protected]

## Supported environment variables

* `MTP_HOST`: The `myhostname` parameter specifies the internet hostname of this mail system (localhost)

* `MTP_DESTINATION`: The `mydestination` parameter specifies the list of domains that this machine considers itself the final destination for.

* `MTP_BANNER`: The `smtpd_banner` parameter specifies the text that follows the 220 code in the SMTP server's greeting banner.

* `MTP_RELAY`: The `relayhost` parameter specifies the default host to send mail to when no entry is matched in the optional transport(5) table.

* `MTP_RELAY_DOMAINS`: The `relay_domains` parameter restricts what destinations this system will relay mail to.

* `MTP_PORT`: The `relayhost` port

* `MTP_USER`: The user used to connect to the `relayhost`

* `MTP_PASS`: The password used to connect to the `relayhost`

* `MTP_INTERFACES`: The `inet_interfaces` parameter specifies the network interface addresses that this mail system receives mail on.