--- univention-mail-horde/conffiles/etc/horde/horde/conf.d/10-ucs.php	2020-06-18 17:10:19.870115325 +0200
+++ univention-mail-horde/conffiles/etc/horde/horde/conf.d/10-ucs.fixed.php	2020-06-18 17:08:53.807755066 +0200
@@ -7,7 +7,7 @@
 
 try:
 	with open('/etc/horde.secret', 'r') as fd:
-		password = fd.read()
+		password = fd.read().rstrip('\n')
 except IOError:
 	password = ''