We have a problem where users can't send mail via the Web interface, but they can send mail via a desktop mail client. It was working yesterday and today it's not.
Trying to send via Web interface results in an error of some sort. Here's the error message:
msg - system failure: MessagingException
code - service.FAILURE
method - ZmCsfeCommand.prototype.invoke
detail - soap:Receiver
Anybody know why this is happening?