diff --git a/bugzilla-email-encode.patch b/bugzilla-email-encode.patch
new file mode 100644
index 0000000..70c2953
--- /dev/null
+++ b/bugzilla-email-encode.patch
@@ -0,0 +1,50 @@
+diff --git a/Bugzilla/MIME.pm b/Bugzilla/MIME.pm
+index 7b5843a..8c6c141 100644
+--- a/Bugzilla/MIME.pm
++++ b/Bugzilla/MIME.pm
+@@ -13,9 +13,6 @@ use warnings;
+ 
+ use parent qw(Email::MIME);
+ 
+-use Encode qw(encode);
+-use Encode::MIME::Header;
+-
+ sub new {
+     my ($class, $msg) = @_;
+     state $use_utf8 = Bugzilla->params->{'utf8'};
+@@ -79,20 +76,12 @@ sub as_string {
+     # MIME-Version must be set otherwise some mailsystems ignore the charset
+     $self->header_set('MIME-Version', '1.0') if !$self->header('MIME-Version');
+ 
+-    # Encode the headers correctly in quoted-printable
++    # Encode the headers correctly.
+     foreach my $header ($self->header_names) {
+         my @values = $self->header($header);
+-        # We don't recode headers that happen multiple times.
+-        next if scalar(@values) > 1;
+-        if (my $value = $values[0]) {
+-            utf8::decode($value) unless $use_utf8 && utf8::is_utf8($value);
+-
+-            # avoid excessive line wrapping done by Encode.
+-            local $Encode::Encoding{'MIME-Q'}->{'bpl'} = 998;
++        map { utf8::decode($_) if defined($_) && !utf8::is_utf8($_) } @values;
+ 
+-            my $encoded = encode('MIME-Q', $value);
+-            $self->header_set($header, $encoded);
+-        }
++        $self->header_str_set($header, @values);
+     }
+ 
+     # Ensure the character-set and encoding is set correctly on single part
+diff --git a/attachment.cgi b/attachment.cgi
+index 5db8f59..40b0c9d 100755
+--- a/attachment.cgi
++++ b/attachment.cgi
+@@ -26,6 +26,7 @@ use Bugzilla::Attachment::PatchReader;
+ use Bugzilla::Token;
+ 
+ use Encode qw(encode find_encoding);
++use Encode::MIME::Header; # Required to alter Encode::Encoding{'MIME-Q'}.
+ 
+ # For most scripts we don't make $cgi and $template global variables. But
+ # when preparing Bugzilla for mod_perl, this script used these
diff --git a/bugzilla.spec b/bugzilla.spec
index 0ad0156..3f8c32d 100644
--- a/bugzilla.spec
+++ b/bugzilla.spec
@@ -6,7 +6,7 @@ URL: http://www.bugzilla.org/
 Name: bugzilla
 Version: 4.4.11
 Group: Applications/Publishing
-Release: 1%{?dist}
+Release: 2%{?dist}
 License: MPLv1.1
 Source0: http://ftp.mozilla.org/pub/mozilla.org/webtools/bugzilla-%{version}.tar.gz
 Source1: bugzilla-httpd-conf
@@ -14,6 +14,8 @@ Source2: README.fedora.bugzilla
 Source3: bugzilla.cron-daily
 Patch0: bugzilla-rw-paths.patch
 Patch1: bugzilla-yum.patch
+# https://bugzilla.mozilla.org/show_bug.cgi?id=1246228
+Patch2: bugzilla-email-encode.patch
 
 BuildArch: noarch
 Requires: webserver, patchutils, perl(SOAP::Lite), which
@@ -104,6 +106,7 @@ Contributed scripts and functions for Bugzilla
 %setup -q -n %{name}-%{version}
 %patch0 -p1
 %patch1 -p1
+%patch2 -p1
 rm -f Bugzilla/Constants.pm.orig
 rm -f Bugzilla/Install/Requirements.pm.orig
 # Remove bundled libs
@@ -229,6 +232,9 @@ popd > /dev/null)
 %{bzinstallprefix}/bugzilla/contrib/Bugzilla.pm
 
 %changelog
+* Sun May 01 2016 Emmanuel Seyman <emmanuel@seyman.fr> - 4.4.11-2
+- backport patch to prevent email address encoding
+
 * Wed Dec 23 2015 Emmanuel Seyman <emmanuel@seyman.fr> - 4.4.11-1
 - Update to 4.4.11