ACL Policy Daemon for Postfix ACL Policy Daemon is a program that communicates with the Postfix MTA using the Policy Delegation Protocol implementing an ACL.
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daemon mail transport Policy Daemon Postfix daemon ACL Policy

ACL Policy Daemon for Postfix Description

ACL Policy Daemon is a program that communicates with the Postfix MTA using the Policy Delegation Protocol implementing an ACL. ACL Policy Daemon is a program that communicates with the Postfix MTA using the Policy Delegation Protocol implementing an ACL (Access Control List) system, making very easy to improve and create nice controls on your e-mail traffic. You can use it to verify SPF records to. The project is developed using Python and has no other dependencies and licensed by GPL version 2.The rules are loaded from a regular text file. It is planned to load the rules from a SQL database or LDAP directory in the future. Greylisting functionality will be implemented soon. For news and updated information about ACL Policy Daemon, you can always check the project page at GNA: https://gna.org/projects/apolicy/Installation:You must have Python installed, version 2.3 or above. Run python to check: miguel@debian:~$ pythonPython 2.4.4c0 (#2, Jul 30 2006, 15:43:58) on linux2Type "help", "copyright", "credits" or "license" for more information.>>>It is very easy to install apolicy. In some distributions, Postfix's daemons are located in /usr/libexec/postfix, check your distribution. The following commands should do just fine, you must be root: debian:~# tar zcf apolicy-0.3.tar.gzdebian:~# cp apolicy-0.3/src/apolicy.py /usr/lib/postfix/debian:~# chmod 755 /usr/lib/postfix/apolicy.pydebian:~# mkdir /etc/apolicy/debian:~# cp apolicy.conf /etc/apolicy/debian:~# chmod 644 /etc/apolicy/apolicy.confdebian:~# echo "apolicy unix - n n - - spawn" >> /etc/postfix/master.cfdebian:~# echo " user=nobody argv=/usr/lib/postfix/apolicy.py" >> /etc/postfix/master.cfThe apolicy.conf is a sample file with examples, you must edit it to fit your needs. Install the complementary modules for apolicy. We will install 3 packages: apolicy, pyspf and pydns. Note that the directory that contains Python libraries is not the same on all operating systems. Sometimes it is inside /usr/lib or /usr/libexec, and may be named python or python< version >: debian:~# mkdir /usr/lib//site-packages/apolicydebian:~# mkdir /usr/lib//site-packages/spfdebian:~# mkdir /usr/lib//site-packages/DNSdebian:~# cp apolicy-0.3/src/apolicy/* /usr/lib//site-packages/apolicydebian:~# cp apolicy-0.3/src/spf/* /usr/lib//site-packages/spfdebian:~# cp apolicy-0.3/src/DNS/* /usr/lib//site-packages/DNSdebian:~# echo apolicy > /usr/lib//site-packages/apolicy.pthdebian:~# echo spf > /usr/lib//site-packages/spf.pthdebian:~# echo DNS > /usr/lib//site-packages/DNS.pthBefore setting Postfix, it is wise to test apolicy and check if everything is right. The configuration file is loaded by default from /etc/apolicy/apolicy.conf, you can use -c parameter to change to point where your configuration file is. It is possible to debug your configuration using the parameter -d, it will send a lot of output to syslog mail facility: debian:~# /usr/lib/postfix/apolicy.py -dThe program must keep running and waiting input from stdin. Take a look at mail.log for any problem. You can press ctrl+c to finish it. If no errors happened, then lets move forward. Finally, add to your main.cf: smtpd_recipient_restrictions = reject_unlisted_recipient ... reject_unauth_destination check_policy_service unix:private/apolicyFor the size acl works, apolicy need to be called this way: smtpd_end_of_data_restrictions = check_policy_service unix:private/apolicyRequirements:· Python >= 2.3 Requirements: · Python >= 2.3

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