diff --git a/example-conf.yml b/example-conf.yml
index 20023b4..e21fc47 100644
--- a/example-conf.yml
+++ b/example-conf.yml
@@ -846,8 +846,8 @@ stats:
         #enabled: true
 
         # Sets the punishment that Antispam should use against mass highlighters.
-        # Valid values include "kill", "kick", "ban", "quiet", and combinations of these strung
-        # together with "+" (e.g. "kick+ban"). Defaults to "kick+ban" if not set.
+        # Valid values include "kill", "kick", "ban", "quiet", "block", and combinations of these
+        # strung together with "+" (e.g. "kick+ban"). Defaults to "kick+ban" if not set.
         #punishment: kick+ban
 
         # Sets the kick / kill message used when mass highlight prevention is triggered.
@@ -868,10 +868,10 @@ stats:
 
         # Sets the punishment that Antispam's text spamfilter should use.
         # Valid values include "kill", "kick", "ban", "quiet", and combinations of these strung
-        # together with "+" (e.g. "kick+ban"). Defaults to "kick+ban" if not set.
+        # together with "+" (e.g. "kick+ban"). Defaults to "kick+ban+block" if not set.
         # If you want Antispam to also monitor PM spam, you will want to change this to something
-        # not channel-specific (such as "kill").
-        #punishment: kick+ban
+        # not channel-specific (such as "kill" or "block").
+        #punishment: kick+ban+block
 
         # Sets the kick / kill message used when the text spamfilter is triggered.
         #reason: "Spam is prohibited"
diff --git a/plugins/antispam.py b/plugins/antispam.py
index ef67e0c..a8f7d62 100644
--- a/plugins/antispam.py
+++ b/plugins/antispam.py
@@ -11,7 +11,7 @@ sbot = utils.register_service("antispam", default_nick="AntiSpam", desc=mydesc)
 def die(irc=None):
     utils.unregister_service("antispam")
 
-PUNISH_OPTIONS = ['kill', 'ban', 'quiet', 'kick']
+PUNISH_OPTIONS = ['kill', 'ban', 'quiet', 'kick', 'block']
 EXEMPT_OPTIONS = ['voice', 'halfop', 'op']
 DEFAULT_EXEMPT_OPTION = 'halfop'
 def _punish(irc, target, channel, punishment, reason):
@@ -81,6 +81,9 @@ def _punish(irc, target, channel, punishment, reason):
                       'these joined together with a "+".',
                       irc.name, punishment, ', '.join(PUNISH_OPTIONS))
             return
+        elif action == 'block':
+            # We only need to increment this for this function to return True
+            successful_punishments += 1
         elif action == 'kill':
             kill = True  # Delay kills so that the user data doesn't disappear.
         # XXX factorize these blocks
@@ -122,6 +125,10 @@ def _punish(irc, target, channel, punishment, reason):
         else:
             successful_punishments += 1
 
+    if not successful_punishments:
+        log.warning('(%s) antispam: Failed to punish %s with %r, target was %s', irc.name,
+                    target_nick, punishment, channel or 'a PM')
+
     return bool(successful_punishments)
 
 MASSHIGHLIGHT_DEFAULTS = {
@@ -204,7 +211,7 @@ utils.add_hook(handle_masshighlight, 'NOTICE', priority=1000)
 
 TEXTFILTER_DEFAULTS = {
     'reason': "Spam is prohibited",
-    'punishment': 'kick+ban',
+    'punishment': 'kick+ban+block',
     'watch_pms': 'false',
     'enabled': False
 }