[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] tar files, closing security holes and telnet, testing sendmail test mode, enabling tf file, queue Timeout_queuereturn option timers, protocols, setting TLS (Transport Layer Security) access database certificates CSR encryption encryption and end-points, authentication requiring for specific recipients STARTTLS and TLS_Clt: entry, access database, encryption levels TLS_PERM_ERR define 2nd 3rd TLS_Srv:, access database, encryption level To: tag (access database) 2nd too many hops error, correcting top-level directory, contents TRUST_AUTH_MECH macro trusted users confTRUSTED_USERS defining TrustedUser option, administrator login and /try command |