Quarantine regex matches headers case insensitive

README.md

@@ -35,7 +35,7 @@ The following configuration options are mandatory in the global section:
 ### Quarantine sections
 The following configuration options are mandatory in each quarantine section:
 * **regex**  
-  Regular expression to filter e-mail headers.
+  Case insensitive regular expression to filter e-mail headers.
 * **quarantine_type**  
   One of the quarantine-types described below.
 * **action**  

docs/pyquarantine.conf.example

@@ -38,7 +38,7 @@ preferred_quarantine_action = last
 ignore_hosts = 10.0.0.0/8,172.16.0.0/12,192.168.0.0/16
 
 # Option: regex
-# Notes:  Set the regular expression to match against email headers.
+# Notes:  Set the case insensitive regular expression to match against email headers.
 #         If the regex matches any of the email headers, the email
 #         will be processed by this quarantine.
 # Values: [ REGEX ]

pyquarantine/__init__.py

@@ -357,7 +357,7 @@ def generate_milter_config(configtest=False, config_files=[]):
 
         # pre-compile regex
         logger.debug("{}: compiling regex '{}'".format(quarantine_name, config["regex"]))
-        config["regex_compiled"] = re.compile(config["regex"], re.MULTILINE + re.DOTALL)
+        config["regex_compiled"] = re.compile(config["regex"], re.MULTILINE + re.DOTALL + re.IGNORECASE)
 
         # create quarantine instance
         quarantine_type = config["quarantine_type"].lower()