I've upgraded to 6.0.4 but it seems to have broken my ability to send email from any account with a child account attached to it using +zimbraChildAccount. I can compose an email but when I click send the button is deactivated and nothing else happens. The composer remains on the screen and clicking any other items results in an error or no reaction.
If I remove the child account, the main account can send fine.
There is no errors in zimbra.log or any logs in /opt/zimbra/log that I can see. I've removed all the zimlets to see if they were breaking it but it doesn't seem like they are.
Any ideas anyone? I've opened a case with Zimbra support but apparently I need a "production down" emergency for them to bother responding!