No special steps are required to set up a mail server that is only serving mail for local users. The user must have an entry in the password file or in the namespace. Also, for mail to be delivered, the user should have a local home directory for checking the ~/.forward file. For this reason, home directory servers are often set up as the mail server. Hardware Components in Chapter 3, Mail Services (Reference) provides more information about the mail server.
The mail server can route mail for many mail clients. This type of mail server must have adequate spooling space for client mailboxes.
For clients to access their mailboxes, the /var/mail directory should be available for remote mounting. Alternately, a service such as Post Office Protocol (POP) or Internet Message Access Protocol (IMAP) should be available from the server. The following task shows you how to set up a mail server by using the /var/mail directory. To provide configuration guidelines for POP or IMAP is beyond the scope of this document.
For the following task, ensure that the /etc/dfs/dfstab file shows that the /var/mail directory is exported.
For more information, see Using Your Assigned Administrative Rights in Securing Users and Processes in Oracle Solaris 11.2 .
# svcadm disable -t network/smtp:sendmail
If the /var/mail directory is listed, proceed to step 5.
If the /var/mail directory is not listed or if no list appears, continue with the appropriate substep.
Follow the procedure, How to Set Up Automatic File System Sharing in Managing Network File Systems in Oracle Solaris 11.2 , to use the /var/mail directory to start NFS services.
Add the following command line to the /etc/dfs/dfstab file.
share -F nfs -o rw /var/mail
For more information, refer to the ypwhich (1) man page.
# nslookup hostname
Use your host name.
For more information, refer to the nslookup(1M) man page.
For more information, refer to the ldaplist(1) man page.
# svcadm enable network/smtp:sendmail