Hi experts,

I'm running Zimbra Open Source to replaced my Exchange Server, things are going well now with web access. But when I installed zimbra desktop and access my mailbox in zimbra server with option to be selected "Zimbra Account" and validate it well,but when I click button "TO" in zimbra desktop it took me return to the "Desktop Launch" and I can't send a local email by this way. Has anyone get this problem ? Please trying to assist me how to fix this

Thanks you very much indeed,