There is no difference in the installer for Xeams Community and Enterprise Edition. It will run as if you have purchased the Enterprise Edition for the first 30 days. It will then get converted to Community Edition unless a license is purchased.
Unable to send email to the server. 554 Message is not RFC compliant; missing "Date" header,Subject: Delivery Status Notification(FAILURE)Also,need to add Date header,some sofeware,such as MDaemon will reject such email without Date value
