I just installed the OS version of Zimbra and was impressed by the product. At the moment i face some problems with mails sent to greylist protected mail servers. the message in the log shows, e.g.:

Recipient address rejected: Greylisted for 60 seconds

But the mail is not in the queue but in the draft folders. I never get confirmed and automatically whitelisted if the mail won't be sent again by the spooler. How to enable mails delivered to the queue and not immediatly rejected by the webinterface?