Fri, 10 Apr 2026 14:48:36 +0000 https://bugs.horde.org/ticket/9359 unable to view or download S/MIME attachments I am using IMP 4.3.6 and Horde 3.3.6 with Apache 2.2.14 on Ubuntu Server 10.04 (64-bit). I am unable to view or download S/MIME attachments. It doesn't matter if the encrypted mail was sent by IMP or by some other mailer. View and download of non-encrypted attachments works fine. I have tried accessing the same IMAP account via Thunderbird and for the very same S/MIME emails, the attachments can be properly viewed and downloaded. When I try to view or download the file, the browser just shows a blank screen. This is similar to the behavior of ticket 9301, except the thumbnail does not show. In addition, there are no errors in the apache log file (in 9301 there was a segmentation fault), nor are there any errors in the horde log file. I tried following the FAQ guidance to enable for detailed logging, but no errors are seen as a result. In horde3/conf.php my debug_level is E_ALL & ~E_DEPRECATED. This is the same value as error_reporting in php.ini. My log priority is PEAR_LOG_WARNING, but I have also tried PEAR_LOG_INFO with no different results. In the apache2 access log, I see the GET for the request and the status code is 200 but the response byte count is too small for the attachment. Thanks for your help. Wed, 03 Nov 2010 18:46:42 +0000 https://bugs.horde.org/ticket/9359#t60712 Thank you for your help on this issue. I think Horde is one of the better webmail/groupware applications out there and I hope to get it working soon. Currently I have an problem receiving Emails with digital signatures. If I receive an Email with a digital signature I get a white screen in horde when I try to open the Email. I can send signatures to others and also encrypt files and they work fine with other email programs. If I sign an email and send it to myself I get a white screen in horde as well. If I encrypt a file and don't sign it and send it to myself it opens fine with no problem. If I receive an encrypted file from others with no signature but encrypted it also opens with no problem. I am using Fedora 10 with PHP Version 5.2.9, Apache version 2.2.10 and MySQL version 5.0.67. I'm not sure what version of linux works best with horde webmail with no problems but I would like to know what is the accepted view on that. Again thank you for your help. Thu, 11 Nov 2010 14:56:08 +0000 https://bugs.horde.org/ticket/9359#t60812 We don't see this. At least you need to provide example messages that trigger this. Thu, 25 Nov 2010 18:02:02 +0000 https://bugs.horde.org/ticket/9359#t60928 > We don't see this. At least you need to provide example messages that > trigger this. The messages are all S/MIME encrypted. I can't provide you the private keys necessary to decrypt any message I would post. It also doesn't seem wise to post the encrypted message in a public forum. Perhaps there is some logging or other change that I can put in place to gather data that will be useful? Thanks. Tue, 07 Dec 2010 13:02:51 +0000 https://bugs.horde.org/ticket/9359#t61017 > The messages are all S/MIME encrypted. I can't provide you the > private keys necessary to decrypt any message I would post. It also > doesn't seem wise to post the encrypted message in a public forum. http://wiki.horde.org/Doc/Dev/SMIME Wed, 15 Dec 2010 17:15:23 +0000 https://bugs.horde.org/ticket/9359#t61098