diff --git a/imap_filter/imap_filter.py b/imap_filter/imap_filter.py
index 69212cc..5fe20e3 100644
--- a/imap_filter/imap_filter.py
+++ b/imap_filter/imap_filter.py
@@ -222,11 +222,14 @@ class ImapFilter:
             else:
                 field = 'From'
             if 'regexp' in mfilter:
-                self._log.debug(
-                    "Filter look for %s regular expressions",
-                    len(mfilter['regexp'])
-                )
-                condition = f'allof (header :contains "{field}" "{mfilter['regexp']}")'
+                if not isinstance(mfilter['regexp'], list):
+                    mfilter['regexp'] = [ mfilter['regexp'] ]
+                for regexp in mfilter['regexp']:
+                    self._log.debug(
+                        "Filter look for %s regular expressions",
+                        len(regexp)
+                    )
+                    condition = f'allof (header :contains "{field}" "{regexp}")'
             else:
                 self._log.debug(
                     "Filter look for %s words",
@@ -302,32 +305,33 @@ class ImapFilter:
                 field_data = raw_field_data[0]
             else:
                 field_data = raw_field_data[0].decode()
-            if 'words' in mfilter:
-                regexp = '^(?=.*' + '.*|.*'.join(mfilter['words']) + '.*)'
+            if 'regexp' in mfilter:
+                if not isinstance(mfilter['regexp'], list):
+                    mfilter['regexp'] = [ mfilter['regexp'] ]
+            elif 'words' in mfilter:
+                mfilter['regexp'] = ['^(?=.*' + '.*|.*'.join(mfilter['words']) + '.*)']
             else:
-                if 'regexp' in mfilter:
-                    regexp = mfilter['regexp']
-                else:
-                    self._log.error(
+                self._log.error(
                         "The filter '%s' doesn't have a 'words' or 'regexp' value. %s",
                         mfilter['name'],
                         mfilter
                     )
-                    return {"match": False}
-            match = re.match(regexp, field_data)
-            if match:
-                self._log.info(
-                    "Field '%s' => '%s', matches filter '%s'",
-                    mfilter['field'],
-                    field_data,
-                    mfilter['name']
-                )
-                self.mailbox_matches += 1
-                if self.config['dummy']:
-                    self._log.info('Doing nothing (dummy run)')
-                else:
-                    self._do_filter(message_id, mfilter)
-                return {"match": True}
+                return {"match": False}
+            for regexp in mfilter['regexp']:
+                match = re.match(regexp, field_data)
+                if match:
+                    self._log.info(
+                        "Field '%s' => '%s', matches filter '%s'",
+                        mfilter['field'],
+                        field_data,
+                        mfilter['name']
+                    )
+                    self.mailbox_matches += 1
+                    if self.config['dummy']:
+                        self._log.info('Doing nothing (dummy run)')
+                    else:
+                        self._do_filter(message_id, mfilter)
+                    return {"match": True}
         return {"match": False}
 
     def _do_filter(self, message_id, mfilter):