diff --git a/fail2ban/server/datedetector.py b/fail2ban/server/datedetector.py
index cccbf71a..dd5d198f 100644
--- a/fail2ban/server/datedetector.py
+++ b/fail2ban/server/datedetector.py
@@ -284,7 +284,7 @@ class DateDetector(object):
 			if preMatch is not None:
 				# get cached or create a copy with modified name/pattern, using preMatch replacement for {DATE}:
 				template = _getAnchoredTemplate(template,
-					wrap=lambda s: RE_DATE_PREMATCH.sub(s, preMatch))
+					wrap=lambda s: RE_DATE_PREMATCH.sub(lambda m: s, preMatch))
 			# append date detector template (ignore duplicate if some was added before default):
 			self._appendTemplate(template, ignoreDup=ignoreDup)
 
diff --git a/fail2ban/tests/action_d/test_smtp.py b/fail2ban/tests/action_d/test_smtp.py
index 8334f948..bf8e83a2 100644
--- a/fail2ban/tests/action_d/test_smtp.py
+++ b/fail2ban/tests/action_d/test_smtp.py
@@ -30,7 +30,7 @@ else:
 
 from ..dummyjail import DummyJail
 
-from ..utils import CONFIG_DIR, asyncserver, Utils
+from ..utils import CONFIG_DIR, asyncserver, Utils, uni_decode
 
 class TestSMTPServer(smtpd.SMTPServer):
 
@@ -38,13 +38,13 @@ class TestSMTPServer(smtpd.SMTPServer):
 		smtpd.SMTPServer.__init__(self, *args)
 		self.ready = False
 
-	def process_message(self, peer, mailfrom, rcpttos, data):
+	def process_message(self, peer, mailfrom, rcpttos, data, **kwargs):
 		self.peer = peer
 		self.mailfrom = mailfrom
 		self.rcpttos = rcpttos
 		self.org_data = data
-		# replace new line (with tab or space) for possible mime translations (word wrap):
-		self.data = re.sub(r"\n[\t ]", " ", data)
+		# replace new line (with tab or space) for possible mime translations (word wrap),
+		self.data = re.sub(r"\n[\t ]", " ", uni_decode(data))
 		self.ready = True
 
 
diff --git a/fail2ban/tests/servertestcase.py b/fail2ban/tests/servertestcase.py
index 83e91831..91f47110 100644
--- a/fail2ban/tests/servertestcase.py
+++ b/fail2ban/tests/servertestcase.py
@@ -1656,7 +1656,7 @@ class ServerConfigReaderTests(LogCaptureTestCase):
 				r' echo mail \1 ) | cat', realCmd)
 			# replace abuse retrieving (possible no-network):
 			realCmd = re.sub(r'[^\n]+\bADDRESSES=\$\(dig\s[^\n]+',
-				'ADDRESSES="abuse-1@abuse-test-server, abuse-2@abuse-test-server"', realCmd)
+				lambda m: 'ADDRESSES="abuse-1@abuse-test-server, abuse-2@abuse-test-server"', realCmd)
 			# execute action:
 			return _actions.CommandAction.executeCmd(realCmd, timeout=timeout)
 
diff --git a/fail2ban/tests/utils.py b/fail2ban/tests/utils.py
index 7c411eee..3d8a48d0 100644
--- a/fail2ban/tests/utils.py
+++ b/fail2ban/tests/utils.py
@@ -37,7 +37,7 @@ import unittest
 from cStringIO import StringIO
 from functools import wraps
 
-from ..helpers import getLogger, str2LogLevel, getVerbosityFormat
+from ..helpers import getLogger, str2LogLevel, getVerbosityFormat, uni_decode
 from ..server.ipdns import DNSUtils
 from ..server.mytime import MyTime
 from ..server.utils import Utils