/etc/postfix/main.cf
smtpd_client_connection_count_limit = 10 smtpd_client_connection_rate_limit = 10 smtpd_client_message_rate_limit = 10 smtpd_delay_reject = yes smtpd_helo_required = yes disable_vrfy_command = yes strict_rfc821_envelopes = yes
/etc/postfix/master.cf
# ========================================================================== # service type private unpriv chroot wakeup maxproc command + args # (yes) (yes) (yes) (never) (100) # ========================================================================== smtp inet n - y - 10 smtpd smtp unix - - y - - smtp lmtp unix - - y - - lmtp
