I had a previous post regarding email that turned out to be because my ports were blocked by the vps host.
However that is fixed and I can now send email from imscp webmail.
But I cannot receive email on it. I have a user [email protected] and when I try sending email from Gmail or Hotmail to this recipient, the email gets rejected with the message "Delivery to following recipient failed [email protected]. User unknown in local recipient table"
On Debian squeeze
imscp 1.1.0-rc1.4
Mail logs attached
EDIT: The issue has been solved and the solution is here.