Hi,
We have a probleme with the notification mail in JIRA 5.2.
The notification mail are stuck in queue. The only way to send notification is to manualy flush mail queue or restart JIRA service.
- The Mail Queue service is set to 1 min.
- The SMTP test work fine
- JIRA is running within a VM on Windows (dont have the "time jump" issue in the log).
- I don't have any mail related error in log.
- JIRA have enought ressources
Do you have any solutions ?
Thank you 
Luc