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1. Tasks

For a given name, which may or may not be a real user on this machine, you are allowed to enter:

A filter program

It is possible to "pipe" all message to a program. The program can be a binary executable, a shell script, or any shell construction such as

                cat >>/tmp/mail.log

This command, for one, will append all incoming mail for the alias in the file /tmp/mail.log.

This is the way to install mail server packages.

A list file

You may want to defer the administration of a mailing list to someone without privilege. You are allowed to specify a text file holding email names. This file may belong to one user. A simple text editor is needed to manage it.

One or several email address

Each email address may be simply a user name, another alias name (alias may be nested), or a full email address.

You can setup simple mailing lists this way.

Those features are independent. This means you can setup a filter program, a list file, and email addresses for the same alias name.

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