You are not allowing your users to relay through postfix. This is a postfix issue, not a cyrus issue since you are getting delivery to the cyrus mailstore for local addresses. I would recommend looking into the SMTP_AUTH configuration for postfix.
Theodore Knab wrote: > an error occured while sending mail > the mail server responded > <[EMAIL PROTECTED]>: Recepient Address rejected: Relay access > denied. > > What do I need to do to get this working ? >