--- umc/python/passwordreset/sending/send_sms.py	(Revision 78343)
+++ umc/python/passwordreset/sending/send_sms.py	(Arbeitskopie)
@@ -68,16 +68,19 @@ 
 			raise ValueError("SendSMS: UCR umc/self-service/passwordreset/sms/country_code must contain a number.")
 
 		self.password_file = self.ucr.get("umc/self-service/passwordreset/sms/password_file")
-		try:
-			with open(self.password_file) as pw_file:
-				self.sms_username, self.sms_password = pw_file.readline().strip().split(":")
-		except ValueError as ve:
-			self.log("SendSMS: Format of sms secrets file ({}) is 'username:password'. Error: {}").format(self.password_file, ve)
-			self.log("SendSMS: Format error in sms secrets file ({}): {}".format(self.password_file, ve))
-			raise
-		except (OSError, IOError) as e:
-			self.log("SendSMS: Error reading sms secrets file ({}): {}".format(self.password_file, e))
-			raise
+		if self.password_file:
+			try:
+				with open(self.password_file) as pw_file:
+					self.sms_username, self.sms_password = pw_file.readline().strip().split(":")
+			except ValueError as ve:
+				self.log("SendSMS: Format of sms secrets file ({}) is 'username:password'. Error: {}").format(self.password_file, ve)
+				self.log("SendSMS: Format error in sms secrets file ({}): {}".format(self.password_file, ve))
+				raise
+			except (OSError, IOError) as e:
+				self.log("SendSMS: Error reading sms secrets file ({}): {}".format(self.password_file, e))
+				raise
+			else:
+				self.sms_username, self.sms_password = "", ""
 
 	@staticmethod
 	def send_method():