mail.local

File 

Mailer that delivers mail to mailboxes. 

sendmail

File 

Routing program, also known as the mail transfer agent. 

smrsh

File 

Shell program (sendmail restricted shell) that uses the “|program” syntax of sendmail to restrict programs that sendmail can run to those programs listed in the /var/adm/sm.bin directory. Refer to the smrsh(1M) man page for recommendations about what to include in /var/adm/sm.bin. To enable, include this m4 command, FEATURE(`smrsh'), in your mc file.

mail

symbolic link 

A symbolic link points to the/etc/mail/cf directory. For more information, refer to Contents of the /etc/mail/cf Directory.