Installing mailTame

Mailtame works alongside your existing mailserver; it does not replace it.

Mailtame will archive all mail sent to it on the 'archive@' email address.
The sub-domain name is configured during installation.

It accepts mail via SMTP on Port 25 addressed to archive@mailtame.(domain name)

The easiest method to 'send a copy of all messages' to Mailtame will vary depending on the Mailserver:
For example, MS Exchange has a feature called 'journalling' which may be used for this purpose.

Configuration

The existing mailserver will need to be able to know where the Mailtame box is in order to send the emails to it. An easy method is to use DNS to locate the Mailtame server.

Set up a DNS A record which points to the IP address of your Mailtame box on your local network*,
for example:  192.168.1.15

* Note this should be a private IP since the only machine which will be sending mail to the Mailtame box will be your mailserver, which is within the same LAN. (And indeed you would not want any other external machine to be able to send mail in to the Mailtame box)

Example:

A-Record:  mailtame.example.com    192.168.1.15

Then mail should be forwarded by your mailserver to
archive@mailtame.example.com