Can't send calendar invitations with BlackBerry
I am currently evaluating Zimbra + BES as a groupware solution for my company. Everything went quite smoothly up to now. I can send mails but I am currently facing a strange trouble. When I invite some participant in an event, the Blackberry send a mail with the event description as attachment. I then receive an "Undeliverable: <event name>" message with error : "File Upload Fault. Please contact your system administrator regarding maximum message and attachment sizes." In addition, I get an error code "HTTP ERROR: 401 no authtoken cookie".
Thanks in advance,