We have running version 8.0.4 for about 6 months on our company server on a CENTOS 6 installation, with all clients (~20) running Thunderbird front end(of differing versions with 17 and 24 being the most common).
The issue is that on multiple occasions and across multiple PC configurations (Ubuntu + TB, Windows + TB), users and I myself have experienced Thunderbird reporting that there are "no new messages for <email account>" and will no longer download any new email.
Upon checking the webmail of the user accounts in question, there are indeed new emails but Thunderbird will not download them.
I have tried compacting and rebuilding the accounts on Thunderbird but this does not solve the problem. I have found that deleting popstate.dat may or may not solve the problem but then we'd have to deal with the duplicates. The temporary solution we have been using so far (until the error happens again) is to delete the Thunderbird account on the computer and remake it.
I have tried to look up the bugs on the wiki as well as searching on the forum and this person seems to describe the same issue.
Our server is configured to use pop with the ff settings in Thunderbird:
Server Name: (Server IP)
Connection Security: SSL/TLS
Authentication: Normal Password
This appears to be a Zimbra <--> Thunderbird issue, and I will probably be attempting to upgrade to 8.0.6 in the coming weeks if time permits.
Has anyone else encountered this issue or is there something that I may have overlooked?
Many thanks and regards,
Zimbra and Thunderbird seem to be running fine except when TB no longer wants to download messages. The messages are there on the server but TB seems to randomly choose to get stuck and start to not download them.