Contents of the /etc/mail Directory - Managing sendmail Services in Oracle® Solaris 11.2

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Contents of the `/etc/mail` Directory

The following table shows the contents of the /etc/mail directory.

Name	Type	Description
`Mail.rc`	File	Default settings for the `mailx` user agent.
`aliases`	File	Mail-forwarding information.
`aliases.db`	File	Default binary form of mail-forwarding information that is created by running `newaliases`.
`aliases.dir`	File	Binary form of mail-forwarding information that is created by running `newaliases`. Can still be used, but is no longer used by default starting with the Solaris 9 release.
`aliases.pag`	File	Binary form of mail-forwarding information that is created by running `newaliases`. Can still be used, but is no longer used by default starting with the Solaris 9 release.
`mailx.rc`	File	Default settings for the `mailx` user agent.
`main.cf`	Symbolic link	A symbolic link from this sample configuration file for main systems to `sendmail.cf` is provided for backwards compatibility. This file is not needed in version 8.13 of `sendmail`.
`relay-domains`	File	List of all domains for which relaying is allowed. By default, only the local domain is allowed.
`sendmail.cf`	File	Configuration file for mail routing.
`submit.cf`	File	New configuration file for the mail submission program (MSP). For more information, refer to submit.cf Configuration File From Version 8.12 of sendmail.
`local-host-names`	File	Optional file that you can create if the number of aliases for the mail host is too long.
`helpfile`	File	Help file that is used by the SMTP `HELP` command.
`sendmail.pid`	File	File that lists the PID of the listening daemon and is now in `/system/volatile`.
`statistics`	File	`sendmail` statistics file. If this file is present, `sendmail` logs the amount of traffic through each mailer. Previously, this file was called `sendmail.st`.
`subsidiary.cf`	Symbolic link	A symbolic link from this sample configuration file for subsidiary systems to `sendmail.cf` is provided for backwards compatibility. This file is not needed in version 8.13 of `sendmail`.
`trusted-users`	File	File that lists the users (one user per line) who can be trusted to perform certain mail operations. By default, only `root` is in this file. Certain mail operations, when performed by untrusted users, result in the following warning, `X-Authentication-Warning: header being added to a message`.