Mailtrap Docker Image

Catch all mail and display it in roundcube interface.

Usage

Start Mailtrap

$ docker run -d --name=mailtrap -p 80:80 eaudeweb/mailtrap

Send email

$ docker run -it --link mailtrap alpine:3.6 sh

  $ telnet mailtrap 25
  ehlo example.com
  mail from: me@example.com
  rcpt to: you@example.com
  data
  Subject: Hello from me
  Hello You,

  This is a test.

  Cheers,
  Me
  .
  quit

See email via Mailtrap Web UI:

• http://localhost

Default login:

• Username: mailtrap
• Password: mailtrap

Customisations:

Set environment variables

• MT_USER - mailbox user, default mailtrap
• MT_PASSWD - mailbox user password, default mailtrap
• MT_MAILBOX_LIMIT - mailbox limit in bytes, default 51200000
• MT_MESSAGE_LIMIT - message limit in bytes, default 10240000
• MT_NETWORK_STYLE - host, subnet, or class, default subnet
• MT_POSTFIX_OPTIONS - http://www.postfix.org/postconf.5.html, any other options you need.

and recreate the container.

Running on a centralized server / if you're seeing Relay access denied

If you're running on a centralized server you need to specify who is allowed to send to the embedded postfix instance option.

To do this you'll need to know the network subnet of the machines that you would allow to send mail to this mailtrap instance. With the subnet in hand for example "10.10.0.0/16" add this to the allowed senders by adding the following environment option MT_POSTFIX_OPTIONS = 10.10.0.0/16

Testing the image locally

sudo docker build -t eaudeweb/mailtrap:test .
sudo docker-compose up