The email account was set up as an IMAP account.
The reason turned out to be the fact that the Inbox of the account contained many emails (>18.000) so I just moved all emails from the Inbox to an Archive folder and the problem was resolved.
Incoming email to osTicket, but attached files from the email message are missing in the ticket.
Make sure attachements are enabled for tickets in osTicket.
After uploading/copying the files from the upload directory to a osTicket installation in order to upgrade it to osTicket 1.9.14, I got the error message ‘Access denied’ when trying to login as administrator to finalize the upgrade. Deleting the osTicket session cookie did not help either.
It turned out that the problem was that all files in the distribution ZIP-file had file permission ‘000’ causing the trouble. A ls -l looked like this:
---------- 1 webNNN clientX 5162 jun 11 18:22 login.php
---------- 1 webNNN clientX 980 jun 11 18:22 logo.php
---------- 1 webNNN clientX 714 jun 11 18:22 logout.php
---------- 1 webNNN clientX 1584 jun 11 18:22 main.inc.php
---------- 1 webNNN clientX 930 jun 11 18:22 offline.php
---------- 1 webNNN clientX 2830 jun 11 18:22 open.php
A simple fix was needed. Make sure you are in the upload folder of the unpacked distribution zip when you do this:
chmod 644 `find . -type f -print`
On Ubuntu 14.04 LTS:
apt-get install php5-imap
php5enmod imap
service apache2 reload