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+==== Configure postfix to use clapf ====
+Edit /etc/postfix/master.cf, and add the following lines:
+<code>
+.0.0.1:10026     inet  n      -      n      -      10      smtpd -o content_filter=
+                       -o receive_override_options=no_unknown_recipient_checks,no_header_body_checks,no_milters
+                       -o smtpd_helo_restrictions=
+                       -o smtpd_client_restrictions=
+                       -o smtpd_sender_restrictions=
+                       -o smtpd_recipient_restrictions=permit_mynetworks,reject
+                       -o mynetworks=127.0.0.0/8
+</code>
+Edit /etc/postfix/main.cf and add the following lines:
+<code>
+recipient_delimiter = +
+content_filter = smtp:[127.0.0.1]:10025
+# if you set this, then postfix will give the email address to clapf without
+# rewriting it so make sure to set the email aliases to the email table
+receive_override_options = no_address_mappings
+default_destination_concurrency_limit = 10
+smtpd_recipient_limit = 128
+lmtp_send_xforward_command = yes
+smtp_send_xforward_command = yes
+smtpd_authorized_xforward_hosts = 127.0.0.0/8
+</code>
+If you want LMTP local delivery instead of SMTP, then set //server_mode=0// in clapf.conf, and use the following content_filter reference:
+<code>
+content_filter = lmtp:[127.0.0.1]:10025
+</code>
+Issue the postfix reload command
+<code>
+postfix reload
+</code>
+Edit the /etc/aliases file to accept spam@ and ham@ addresses as aliases (or you may use virtual aliases too):
+   ham: /dev/null
+   spam: /dev/null
+Then issue the 'newaliases' command.
+=== Further notes ===
+The clapf daemon can handle a finite number of recipients, 128 by default. If you want more recipients in a single session edit MAX_RCPT_TO in config.h then (re)compile clapf and adjust the //smtpd_recipient_limit// variable in main.cf. If you want less than 128 you should only adjust the //smtpd_recipient_limit// variable in main.cf.
+Please note that if you want to increase the concurrency, modify the default_destination_concurrency_limit in main.cf, the 127.0.0.1:10026 entry in master.cf and the //number_of_worker_processes// in clapf.conf, then reload postfix.
+The //number_of_worker_processe// should be greater than //default_destination_concurrency_limit//:
+<code>
+number_of_worker_processe ›= default_destination_concurrency_limit + 1
+</code>