[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [X] [Y] [Z] needexpnhelo flag needmailhelo flag needvrfyhelo flag network accessible servers, limiting newaliases command migrating to new address missing file error, correcting NIS (Network Information Service), reading aliases Red Hat 7.3 Solaris 8 no_default_msa, preventing MSA configuration nobodyreturn flag noexpn flag Non-SUID root noverb flag novrfy flag nssswitch.conf file, editing for NIS null clients nullclient configuration, testing masquerading and relaying all mail number of servers, limiting |