diff --git a/lib/core_ext/string.rb b/lib/core_ext/string.rb
index b060d80bb..b46611edc 100644
--- a/lib/core_ext/string.rb
+++ b/lib/core_ext/string.rb
@@ -103,6 +103,9 @@ class String
     # remove style tags with content
     string.gsub!( %r{<style(|\s.+?)>(.+?)</style>}im, '')
 
+    # insert spaces on [A-z]\n[A-z]
+    string.gsub!( /([A-z])\n([A-z])/m, '\1 \2' )
+
     # remove empty lines
     string.gsub!( /^\s*/m, '' )
 
diff --git a/test/unit/aaa_string_test.rb b/test/unit/aaa_string_test.rb
index 2f69834d1..c533c71aa 100644
--- a/test/unit/aaa_string_test.rb
+++ b/test/unit/aaa_string_test.rb
@@ -7,123 +7,127 @@ class AaaStringTest < ActiveSupport::TestCase
     modul  = 'test'
     result = 'test'
     modul.to_filename
-    assert_equal( result,  modul )
+    assert_equal(result,  modul)
 
     modul  = 'Some::File'
     result = 'Some::File'
     modul.to_filename
-    assert_equal( result,  modul )
+    assert_equal(result,  modul)
   end
 
   test 'to_filename function' do
     modul  = 'test'
     result = 'test'
-    assert_equal( result,  modul.to_filename )
+    assert_equal(result,  modul.to_filename)
 
     modul  = 'Some::File'
     result = 'some/file'
-    assert_equal( result,  modul.to_filename )
+    assert_equal(result,  modul.to_filename)
   end
 
   test 'to_classname ref' do
     modul  = 'test'
     result = 'test'
     modul.to_filename
-    assert_equal( result,  modul )
+    assert_equal(result,  modul)
 
     modul  = 'some/file'
     result = 'some/file'
     modul.to_filename
-    assert_equal( result,  modul )
+    assert_equal(result,  modul)
   end
 
   test 'to_classname function' do
     modul  = 'test'
     result = 'Test'
-    assert_equal( result,  modul.to_classname )
+    assert_equal(result,  modul.to_classname)
 
     modul  = 'some/file'
     result = 'Some::File'
-    assert_equal( result,  modul.to_classname )
+    assert_equal(result,  modul.to_classname)
 
     modul  = 'some/files'
     result = 'Some::Files'
-    assert_equal( result,  modul.to_classname )
+    assert_equal(result,  modul.to_classname)
 
     modul  = 'some_test/files'
     result = 'SomeTest::Files'
-    assert_equal( result,  modul.to_classname )
+    assert_equal(result,  modul.to_classname)
   end
 
   test 'html2text ref' do
     html   = 'test'
     result = 'test'
     html.html2text
-    assert_equal( result,  html )
+    assert_equal(result,  html)
 
     html   = '<div>test</div>'
     result = '<div>test</div>'
     html.html2text
-    assert_equal( result,  html )
+    assert_equal(result,  html)
   end
 
   test 'html2text function' do
 
     html   = 'test'
     result = 'test'
-    assert_equal( result, html.html2text )
+    assert_equal(result, html.html2text)
 
     html   = '  test '
     result = 'test'
-    assert_equal( result, html.html2text )
+    assert_equal(result, html.html2text)
 
     html   = "\n\n  test \n\n\n"
     result = 'test'
-    assert_equal( result, html.html2text )
+    assert_equal(result, html.html2text)
 
     html   = '<div>test</div>'
     result = 'test'
-    assert_equal( result, html.html2text )
+    assert_equal(result, html.html2text)
 
     html   = '<div>test<br></div>'
     result = 'test'
-    assert_equal( result, html.html2text )
+    assert_equal(result, html.html2text)
 
     html   = "<div>test<br><br><br>\n<br>\n<br>\n</div>"
     result = 'test'
-    assert_equal( result, html.html2text )
+    assert_equal(result, html.html2text)
 
     html   = "<pre>test\n\ntest</pre>"
     result = "test\ntest"
-    assert_equal( result, html.html2text )
+    assert_equal(result, html.html2text)
 
     html   = "<code>test\n\ntest</code>"
     result = "test\ntest"
-    assert_equal( result, html.html2text )
+    assert_equal(result, html.html2text)
 
     html   = '<table><tr><td>test</td><td>col</td></td></tr><tr><td>test</td><td>4711</td></tr></table>'
     result = "test col \ntest 4711"
-    assert_equal( result, html.html2text )
+    assert_equal(result, html.html2text)
+
+    html   = "<p><span>Was\nsoll verbessert werden:</span></p>"
+    result = 'Was soll verbessert werden:'
+    assert_equal(result, html.html2text)
 
     html   = "<!-- some comment -->
     <div>
     test<br><br><br>\n<br>\n<br>\n
     </div>"
     result = 'test'
-    assert_equal( result, html.html2text )
+    assert_equal(result, html.html2text)
 
     html   = "\n<div><a href=\"http://zammad.org\">Best Tool of the World</a>
      some other text</div>
     <div>"
     result = "[1] Best Tool of the Worldsome other text\n\n\n[1] http://zammad.org"
-    assert_equal( result, html.html2text )
+    assert_equal(result, html.html2text)
 
     html   = "<!-- some comment -->
     <div>
     test<br><br><br>\n<hr/>\n<br>\n
     </div>"
     result = "test\n\n___"
-    assert_equal( result, html.html2text )
+    assert_equal(result, html.html2text)
 
     html = ' line&nbsp;1<br>
 you<br/>
@@ -131,12 +135,12 @@ you<br/>
     should = 'line 1
 you
 -----&'
-    assert_equal( should, html.html2text )
+    assert_equal( should, html.html2text)
 
     html = ' <ul><li>#1</li><li>#2</li></ul>'
     should = '* #1
 * #2'
-    assert_equal( should, html.html2text )
+    assert_equal( should, html.html2text)
 
     html = '<!DOCTYPE html>
 <html>
@@ -151,7 +155,7 @@ you
 >
 > Thank you for installing Zammad.
 >'
-    assert_equal( should, html.html2text )
+    assert_equal( should, html.html2text)
 
     html = '      <style type="text/css">
     body {
@@ -186,7 +190,7 @@ ont-size: 12px;;
 
     </style><p>some other content</p>'
     should = 'some other content'
-    assert_equal( should, html.html2text )
+    assert_equal( should, html.html2text)
 
     html = '        IT-Infrastruktur</span><br>
       <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
@@ -253,7 +257,7 @@ div.wordsection1
 <o:idmap v:ext="edit" data="1" />
 </o:shapelayout></xml><![endif]-->'
     should = 'IT-Infrastruktur'
-    assert_equal( should, html.html2text )
+    assert_equal( should, html.html2text)
 
     html   = "<h1>some head</h1>
     some content
@@ -268,7 +272,7 @@ some content
 > line 2
 
 some text later'
-    assert_equal( result, html.html2text )
+    assert_equal(result, html.html2text)
 
     html   = "<h1>some head</h1>
     some content
@@ -283,7 +287,7 @@ some content
 > line 2
 
 some text later'
-    assert_equal( result, html.html2text )
+    assert_equal(result, html.html2text)
 
     html   = "<h1>some head</h1>
     some content
@@ -298,7 +302,7 @@ some content
 > 
 > line 2
 some text later'
-    assert_equal( result, html.html2text )
+    assert_equal(result, html.html2text)
 
     html   = "<p>Best regards,</p>
 <p><i>Your Team Team</i></p>
@@ -312,7 +316,7 @@ P.S.: You receive this e-mail because you are listed in our database as person w
 
 
 [1] http://www.teamviewer.example/en/company/unsubscribe.aspx?id=1009645&ident=xxx'
-    assert_equal( result, html.html2text )
+    assert_equal(result, html.html2text)
 
     html   = "<div><br>Dave and leaned her 
 days adam.</div><span style=\"color:#F7F3FF; font-size:8px\">Maybe we 
@@ -325,7 +329,7 @@ Maybe we want any help me that.
 Next morning charlie saw at their father.
 Well as though adam took out here. Melvin will be more money. Called him into this one last thing.
 Men-----------------------'
-    assert_equal( result, html.html2text )
+    assert_equal(result, html.html2text)
 
   end