Postfix Configuration Requirements

• If the IP address used by the SMTP service is specified, the IP address should be a virtual IP address that is protected by Lifekeeper.

• main.cf

The Postfix Recovery Kit refers to the value of the following parameters:

º mail_owner

º setgid_group

º daemon_directory

º command_directory

º process_id_directory

º inet_interfaces

Specify the virtual IP addresses to be monitored. One or more may be specified. Use “all” to specify all IP addresses.

º queue_directory

º mail_spool_directory

• master.cf

You must specify the following:

º A smtp(s) service entry to start smtpd.

• The directory specified for the queue_directory value must be on shared storage. This is necessary so that the file system of this directory can be LifeKeeper protected.

• If the system has a mailbox spool, the directory specified for the mail_spool_directory value has to be on shared storage.

• Owner id of postfix has to be the same id on all cluster servers.

• Group id of postdrop (setgid_group) has to be the same id on all cluster servers.

• Auto startup at the time of the system activation must be disabled because Postfix service is controlled by LifeKeeper.