I have roundcube (was 1.3.8, now 1.3.10) installed on Ubuntu Xenial using Apache/php7.2 talking to dovecot 2.2.22 on localhost.
It was first installed several years ago but has recently stopped working - that is, while I and other users can login and see the list of imap folders, no messages are listed in the summary and no message content is visible. There is a message saying "mailbox is empty". However, I know I have large numbers of mails in these folders because I can see them in Thunderbird.
Sending a test mail works fine (in that the message is sent) except that the process hangs, presumably while trying to add the sent message to the imap sent mail folder.
I have enabled logging in config.inc.php and bumped the log level to 9 (not sure of range?) and can see that the imap server accepts the login and returns a list of subscribed folders. However after that nothing else is in the log.
Since this issue started I have updated the roundcube software to 1.3.10 (changelog) and checked config is sane, but this has not helped. I am using Firefox, but have checked it fails on Chrome as well.
I have wondered if there was some sort of permissions problem but, given Thunderbird is fine, what/where would it be?
Updated:
- I have tried moving all plugins from the 'active' list to the 'installed' list to see if that helped, but it doesn't.
- I can supply elements of the config if requested but would prefer not to spam this list unnecessarily!