Setting up mail services

Use these procedures to set up each component of your mail service. Learn how to set up a mail server, a mail client, a mail host, and a mail gateway. Learn how to use DNS with sendmail.

Altering the sendmail configuration

Use these procedures to modify your configuration files or service properties.

Administering mail alias files

Use these procedures to provide aliasing on your network. Learn how to set up an NIS map, a local mail alias, a keyed map file, and a postmaster alias.

Administering the mail queue

Use these procedures to provide smooth queue processing. Learn how to display and move the mail queue, force mail queue processing, and run a subset of the mail queue. Also, learn how to run the old mail queue.

Administering .forward files

Use these procedures to disable .forward files or change the search path of the .forward file. Also, learn how to permit users to use the .forward file by creating and populating /etc/shells.

Troubleshooting procedures and tips for mail services

Use these procedures and tips to resolve problems with your mail service. Learn how to test the mail configuration, check mail aliases, test the sendmail rule sets, verify connections to other systems, and log messages. Also, learn where to look for other mail diagnostic information.

Resolving error messages

Use the information in this section to resolve some mail-related error messages.