4 files changed, 14 insertions, 8 deletions
diff --git a/actionmailer/lib/action_mailer/base.rb b/actionmailer/lib/action_mailer/base.rb
index 61bc74a81c..89c202fd01 100644
--- a/actionmailer/lib/action_mailer/base.rb
+++ b/actionmailer/lib/action_mailer/base.rb
@@ -1,6 +1,7 @@
 require 'action_mailer/adv_attr_accessor'
 require 'action_mailer/part'
 require 'action_mailer/part_container'
+require 'action_mailer/utils'
 require 'tmail/net'
 
 module ActionMailer #:nodoc:
@@ -293,11 +294,11 @@ module ActionMailer #:nodoc:
 
         if @parts.empty?
           m.set_content_type content_type, nil, { "charset" => charset }
-          m.body = body
+          m.body = Utils.normalize_new_lines(body)
         else
           if String === body
             part = TMail::Mail.new
-            part.body = body
+            part.body = Utils.normalize_new_lines(body)
             part.set_content_type content_type, nil, { "charset" => charset }
             part.set_content_disposition "inline"
             m.parts << part
diff --git a/actionmailer/lib/action_mailer/part.rb b/actionmailer/lib/action_mailer/part.rb
index 60cbe0d3fe..d4b8e3b9d9 100644
--- a/actionmailer/lib/action_mailer/part.rb
+++ b/actionmailer/lib/action_mailer/part.rb
@@ -1,5 +1,6 @@
 require 'action_mailer/adv_attr_accessor'
 require 'action_mailer/part_container'
+require 'action_mailer/utils'
 
 module ActionMailer
   class Part #:nodoc:
@@ -29,7 +30,7 @@ module ActionMailer
           when "base64" then
             part.body = TMail::Base64.folding_encode(body)
           when "quoted-printable"
-            part.body = [body].pack("M*")
+            part.body = [Utils.normalize_new_lines(body)].pack("M*")
           else
             part.body = body
         end
diff --git a/actionmailer/lib/action_mailer/utils.rb b/actionmailer/lib/action_mailer/utils.rb
new file mode 100644
index 0000000000..552f695a92
--- /dev/null
+++ b/actionmailer/lib/action_mailer/utils.rb
@@ -0,0 +1,8 @@
+module ActionMailer
+  module Utils #:nodoc:
+    def normalize_new_lines(text)
+      text.to_s.gsub(/\r\n?/, "\n")
+    end
+    module_function :normalize_new_lines
+  end
+end
diff --git a/actionmailer/lib/action_mailer/vendor/tmail/mail.rb b/actionmailer/lib/action_mailer/vendor/tmail/mail.rb
index f4a42df19b..9111a65042 100755
--- a/actionmailer/lib/action_mailer/vendor/tmail/mail.rb
+++ b/actionmailer/lib/action_mailer/vendor/tmail/mail.rb
@@ -335,13 +335,9 @@ module TMail
       }
     end
 
-    def normalize_line_endings(text)
-      text.to_s.gsub(/\r\n?/, "\n")
-    end
-
     def body=( str )
       parse_body
-      @body_port.wopen {|f| f.write normalize_line_endings(str) }
+      @body_port.wopen {|f| f.write str }
       str
     end