Mails with pdf attachments are no longer displayed, they create a server error. PHP Fatal error: Undefined class constant 'ALPHACHANNEL_REMOVE' in /usr/share/horde/imp/lib/Mime/Viewer/Pdf.php on line 142, ... Upstream now targets the new ImageMagick API, which el7 doesn't provide. https://bugs.horde.org/ticket/14833 There is a patch suggested in this ticket which works for me.
Trivial patch proposal: https://github.com/mkoppanen/imagick/pull/186
php-horde-imp-6.2.23-2.el7 has been submitted as an update to Fedora EPEL 7. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2019-afdb744710
php-horde-imp-6.2.23-2.el6 has been submitted as an update to Fedora EPEL 6. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2019-cb70f98a43
php-horde-imp-6.2.23-2.el7 has been pushed to the Fedora EPEL 7 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2019-afdb744710
php-horde-imp-6.2.23-2.el6 has been pushed to the Fedora EPEL 6 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2019-cb70f98a43
php-horde-imp-6.2.23-2.el7 fixes it, thanks.
php-horde-imp-6.2.23-2.el6 has been pushed to the Fedora EPEL 6 stable repository. If problems still persist, please make note of it in this bug report.
php-horde-imp-6.2.23-2.el7 has been pushed to the Fedora EPEL 7 stable repository. If problems still persist, please make note of it in this bug report.