Searching for good solution to prevent most of the spam i found this... Code: # vi /etc/postfix/main.cf Set/modify configuration as follows Code: disable_vrfy_command = yes smtpd_delay_reject = yes smtpd_helo_required = yes smtpd_helo_restrictions = permit_mynetworks, reject_non_fqdn_hostname, reject_invalid_hostname, permit smtpd_recipient_restrictions = permit_sasl_authenticated, reject_invalid_hostname, reject_non_fqdn_hostname, reject_non_fqdn_sender, reject_non_fqdn_recipient, reject_unknown_sender_domain, reject_unknown_recipient_domain, permit_mynetworks, reject_rbl_client list.dsbl.org, reject_rbl_client sbl.spamhaus.org, reject_rbl_client cbl.abuseat.org, reject_rbl_client dul.dnsbl.sorbs.net, permit smtpd_error_sleep_time = 1s smtpd_soft_error_limit = 10 smtpd_hard_error_limit = 20 It would be correct to add this setting to Postfix in Debian Etch (The Perfect Setup) + ISPConfig?
Some of this looks redundant and also belonging in another category to me. Compare with the Postfix documentation before use.