When I submit/reply to tickets via email with PDF attachments, those attachments do not appear in the UI with the articles. However, If I go to "Plain Format" I see them in the MIME content of the article and if I "Download this email" they are there as well. I have installed the *PDF::API2 * module and don't see any log errors. I have tried the following combinations, each with the same results. Is there another sysconfig option I need to set? Other attachments do appear. Content-ID: <AD Group Membership Report.pdf> Content-Disposition: attachment; filename="AD Group Membership Report.pdf" Content-Type: application/pdf; name="AD Group Membership Report.pdf" Content-Transfer-Encoding: base64 Content-Type: application/pdf; name="AD Group Membership Report.pdf" Content-Transfer-Encoding: base64 Content-ID: <AD Group Membership Report.pdf> Content-Description: AD Group Membership Report.pdf Content-Disposition: attachment; filename="AD Group Membership Report.pdf" Content-Location: AD%20Group%20Membership%20Report.pdf The system is: - OTRS 3.0.3 - IIS 7.0 with PerlEx. - Exchange and hMailServer are relaying the messages. Hugh