Horde_ActiveSync 2.24.1

Changes have been made in Git (master):

commit f38ce272df382c3c9e9f396b7db6787897eee543
Author: Michael J Rubinsky <mrubinsk@horde.org>
Date:   Mon Jan 26 11:40:37 2015 -0500

     [mjr] Always send the attachmentsenabled policy, even when it's 
the default value of 'enabled' (Bug #13827).

  framework/ActiveSync/package.xml |    4 ++--
  1 files changed, 2 insertions(+), 2 deletions(-)

http://github.com/horde/horde/commit/f38ce272df382c3c9e9f396b7db6787897eee543

Changes have been made in Git (master):

commit a2fe8df9c3e103de61becd395106aa9f100b6b94
Author: Michael J Rubinsky <mrubinsk@horde.org>
Date:   Mon Jan 26 11:37:33 2015 -0500

     At least one known device (HTC One mini) requires this to be sent 
even if it's default.

     Bug: 13827

  .../ActiveSync/lib/Horde/ActiveSync/Policies.php   |    2 +-
  1 files changed, 1 insertions(+), 1 deletions(-)

http://github.com/horde/horde/commit/a2fe8df9c3e103de61becd395106aa9f100b6b94

Yes working!
Thank you.

[Log provided directly]

We aren't even sending that policy to the device since "enabled" is 
the default value for that policy.  You can try forcing Horde to send 
it even if it's default with the following patch:

diff --git a/framework/ActiveSync/lib/Horde/ActiveSync/Policies.php 
b/framework/ActiveSync/lib/Horde/ActiveSync/Policies.php
index 01559d5..4289142 100644
--- a/framework/ActiveSync/lib/Horde/ActiveSync/Policies.php
+++ b/framework/ActiveSync/lib/Horde/ActiveSync/Policies.php
@@ -259,7 +259,7 @@ class Horde_ActiveSync_Policies
              $this->_sendPolicy(self::POLICY_COMPLEXITY, 
$policies[self::POLICY_COMPLEXITY] >= 1 ? '1' : '0', true);
          }
          $this->_sendPolicy(self::POLICY_ENCRYPTION, 
$policies[self::POLICY_ENCRYPTION], true);
-        $this->_sendPolicy(self::POLICY_ATC, 
$policies[self::POLICY_ATC], true);
+        $this->_sendPolicy(self::POLICY_ATC, 
$policies[self::POLICY_ATC], false);
          $this->_sendPolicy(self::POLICY_AEFVALUE, 
$policies[self::POLICY_AEFVALUE], true);
          $this->_sendPolicy(self::POLICY_MAXATCSIZE, 
$policies[self::POLICY_MAXATCSIZE], true);
          if ($this->_version > Horde_ActiveSync::VERSION_TWELVE) {

Maybe that helps?

Can you provide a log snippit of the PROVISION command and response?

I add the "Attachment Download (AttachmentsEnabled)" permission for 
all authenticated users.
Unfortunately the device doesn't have the permissions.