policyd-rate-limit - rate limiter SMTP policy daemon
Contents
Configuration
If the option --file is not specified, policyd-rate-limit(8) try to read its configuration from the
following path and choose the first existing file:
~/.config/policyd-rate-limit.conf~/.config/policyd-rate-limit.yaml
/etc/policyd-rate-limit.conf
/etc/policyd-rate-limit.yaml
The .conf are the old configuration format. It was a python module and should not be used. The .yaml are
the new configuration format using the YAML syntax. See YAML(3pm) for an overview of the format. See
policyd-rate-limit.yaml(5) for possible settings.
Copyright
GPL-3
3.8 2016-08-04 policyd-rate-limit(8)
Description
policyd-rate-limit(8) is a SMTP policy daemon written in python3(1) for postfix(1). It keep track of the number of mails sent by sasl usernames and/or ip addresses over time sliding window. A configurable action (see access(5)) is done then a user and/or ip address exceeds one or more configurable limits.
Exit Values
0 Normal exit.
1 Only return then the option --get-config is used. Configuration parameter not found.
2 User or group set in the configuration file do not exists.
3 Another instance is already running
4 The configuration parameter SOCKET is malformed
5 Configuration file not found
6 Some error was raised during runtime
8 Error during cleaning
Logging
Logging is output to stderr and redirected to syslog(3) by systemd. Logs are produced only if the debug
configuration parameter is set to True.
Name
policyd-rate-limit - rate limiter SMTP policy daemon
Options
-h,--help
show this help message and exit
--clean
clean old records from the database
--get-configconfigname
return the value of the configname configuration parameter. You can get a value in a dictionary
by using a dotted notation. For instance, for getting the key KEY in the dictionary DICT, you
should use DICT.KEY for configname. You can call the configuration parameter config_file to
known which configuration file is used.
-f,--file
path to a policyd-rate-limit configuration file
See Also
policyd-rate-limit.yaml(5): policyd-rate-limit configuration file master(5), Postfix master.cf file syntax access(5), Postfix SMTP access control table
Setup
For example, for postfix 3.0 and later, you can set in postfix /etc/postfix/main.cf configuration file:
smtpd_data_restrictions =
...,
check_policy_service { unix:ratelimit/policy, default_action=DUNNO },
...
Postfix will ask policyd-rate-limit what to do on mail reception (success or fail action) and will accept
mail if policyd-rate-limit become unavailable.
On previous postfix versions, you must use:
smtpd_data_restrictions =
...,
check_policy_service unix:ratelimit/policy,
...
Synopsis
policyd-rate-limit [-h] [--clean] [--get-configconfigname] [--fileconfigpath]
