sendmail, 4th Edition

The FEATURE(queuegroup) and the access Database

The easiest way to select queue groups based on recipient addresses or recipient domains is by using the FEATURE(queuegroup). It is declared in your mc configuration file like this:

FEATURE(`queuegroup')
FEATURE(`queuegroup', `default group')

The first line causes the queue group to default to mqueue if a queue group in the access database is missing or nonexistent. The second line allows you to set a different default queue group. For example, consider the following lines from an mc file:

QUEUEGROUP(`localgroup', `/queue/lq')
FEATURE(`queuegroup', `localgroup')

This causes sendmail to use the group named localgroup instead of mqueue as the default if a queue group in the access database is missing or nonexistent.

Once you have enabled the FEATURE(queuegroup), the next step is to add lines such as the following to the source file for your access database:

QGRP:slow-poke.com      slowgroup
QGRP:[e-mail]    fastgroup
QGRP:your.domain        localgroup

Each line that selects queue groups must begin with the literal expression:

QGRP:

This prefix tells sendmail that you wish to map recipient addresses or domains to queue groups.

The first line causes mail to the slow-poke.com domain to use the queue group called slowgroup. This shows that you can list just a domain in the lefthand column and it will work just as expected.

The second line causes mail to the specific recipient [e-mail] to use the queue group named fastgroup. This line demonstrates that ...